1301111331 has 16 divisors (see below), whose sum is σ = 1881907104. Its totient is φ = 794836224.

The previous prime is 1301111321. The next prime is 1301111351. The reversal of 1301111331 is 1331111031.

It is not a de Polignac number, because 1301111331 - 2²⁶ = 1234002467 is a prime.

It is a super-2 number, since 2×1301111331² = 3385781391313183122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1301111331.

It is not an unprimeable number, because it can be changed into a prime (1301111321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116416 + ... + 127101.

It is an arithmetic number, because the mean of its divisors is an integer number (117619194).

Almost surely, 2^1301111331 is an apocalyptic number.

1301111331 is a deficient number, since it is larger than the sum of its proper divisors (580795773).

1301111331 is a wasteful number, since it uses less digits than its factorization.

1301111331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243670.

The product of its (nonzero) digits is 27, while the sum is 15.

The square root of 1301111331 is about 36070.9208504579. The cubic root of 1301111331 is about 1091.7037941597.

Adding to 1301111331 its reverse (1331111031), we get a palindrome (2632222362).

It can be divided in two parts, 13011 and 11331, that added together give a palindrome (24342).

The spelling of 1301111331 in words is "one billion, three hundred one million, one hundred eleven thousand, three hundred thirty-one".