1131101445 has 48 divisors (see below), whose sum is σ = 1932310080. Its totient is φ = 564841728.

The previous prime is 1131101431. The next prime is 1131101459. The reversal of 1131101445 is 5441011311.

It is an interprime number because it is at equal distance from previous prime (1131101431) and next prime (1131101459).

It is not a de Polignac number, because 1131101445 - 2¹¹ = 1131099397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 480762 + ... + 483108.

It is an arithmetic number, because the mean of its divisors is an integer number (40256460).

Almost surely, 2^1131101445 is an apocalyptic number.

1131101445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1131101445 is a deficient number, since it is larger than the sum of its proper divisors (801208635).

1131101445 is a wasteful number, since it uses less digits than its factorization.

1131101445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2482 (or 2463 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1131101445 is about 33631.8516439402. The cubic root of 1131101445 is about 1041.9187473406.

Adding to 1131101445 its reverse (5441011311), we get a palindrome (6572112756).

The spelling of 1131101445 in words is "one billion, one hundred thirty-one million, one hundred one thousand, four hundred forty-five".