31345111351 has 16 divisors (see below), whose sum is σ = 32644368288. Its totient is φ = 30073766400.

The previous prime is 31345111283. The next prime is 31345111373. The reversal of 31345111351 is 15311154313.

It is a cyclic number.

It is not a de Polignac number, because 31345111351 - 2¹³ = 31345103159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31345111381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1023481 + ... + 1053661.

It is an arithmetic number, because the mean of its divisors is an integer number (2040273018).

Almost surely, 2^31345111351 is an apocalyptic number.

31345111351 is a deficient number, since it is larger than the sum of its proper divisors (1299256937).

31345111351 is a wasteful number, since it uses less digits than its factorization.

31345111351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30642.

The product of its digits is 2700, while the sum is 28.

Adding to 31345111351 its reverse (15311154313), we get a palindrome (46656265664).

The spelling of 31345111351 in words is "thirty-one billion, three hundred forty-five million, one hundred eleven thousand, three hundred fifty-one".