1141101261 has 6 divisors (see below), whose sum is σ = 1648257390. Its totient is φ = 760734168.

The previous prime is 1141101257. The next prime is 1141101263. The reversal of 1141101261 is 1621011411.

It can be written as a sum of positive squares in only one way, i.e., 1125938025 + 15163236 = 33555^2 + 3894^2 .

It is not a de Polignac number, because 1141101261 - 2² = 1141101257 is a prime.

It is a super-2 number, since 2×1141101261² = 2604224175711580242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141101263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63394506 + ... + 63394523.

It is an arithmetic number, because the mean of its divisors is an integer number (274709565).

Almost surely, 2^1141101261 is an apocalyptic number.

It is an amenable number.

1141101261 is a deficient number, since it is larger than the sum of its proper divisors (507156129).

1141101261 is a wasteful number, since it uses less digits than its factorization.

1141101261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126789035 (or 126789032 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

The square root of 1141101261 is about 33780.1903635844. The cubic root of 1141101261 is about 1044.9802003223.

Adding to 1141101261 its reverse (1621011411), we get a palindrome (2762112672).

The spelling of 1141101261 in words is "one billion, one hundred forty-one million, one hundred one thousand, two hundred sixty-one".