311011303031431 has 16 divisors (see below), whose sum is σ = 323905611744000. Its totient is φ = 298261776814848.

The previous prime is 311011303031381. The next prime is 311011303031461. The reversal of 311011303031431 is 134130303110113.

It is a cyclic number.

It is not a de Polignac number, because 311011303031431 - 2⁹ = 311011303030919 is a prime.

It is a super-2 number, since 2×311011303031431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311011303031396 and 311011303031405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311011303031461) 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, 134215171 + ... + 136512763.

It is an arithmetic number, because the mean of its divisors is an integer number (20244100734000).

Almost surely, 2^{311011303031431} is an apocalyptic number.

311011303031431 is a deficient number, since it is larger than the sum of its proper divisors (12894308712569).

311011303031431 is a wasteful number, since it uses less digits than its factorization.

311011303031431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329098.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 311011303031431 its reverse (134130303110113), we get a palindrome (445141606141544).

The spelling of 311011303031431 in words is "three hundred eleven trillion, eleven billion, three hundred three million, thirty-one thousand, four hundred thirty-one".