1301313131 has 4 divisors (see below), whose sum is σ = 1302373200. Its totient is φ = 1300253064.

The previous prime is 1301313121. The next prime is 1301313151. The reversal of 1301313131 is 1313131031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1313131031 = 131 ⋅10023901.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1301313131 is a prime.

It is a super-2 number, since 2×1301313131² = 3386831729826046322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301313121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528191 + ... + 530648.

It is an arithmetic number, because the mean of its divisors is an integer number (325593300).

Almost surely, 2^1301313131 is an apocalyptic number.

1301313131 is a deficient number, since it is larger than the sum of its proper divisors (1060069).

1301313131 is a wasteful number, since it uses less digits than its factorization.

1301313131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060068.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 1301313131 is about 36073.7180090991. The cubic root of 1301313131 is about 1091.7602316661.

Adding to 1301313131 its reverse (1313131031), we get a palindrome (2614444162).

It can be divided in two parts, 1301 and 313131, that added together give a cube (314432 = 68³).

The spelling of 1301313131 in words is "one billion, three hundred one million, three hundred thirteen thousand, one hundred thirty-one".