31311012103030 has 16 divisors (see below), whose sum is σ = 61483441947984. Its totient is φ = 11385822582880.

The previous prime is 31311012102991. The next prime is 31311012103043. The reversal of 31311012103030 is 3030121011313.

It is a super-2 number, since 2×31311012103030² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31311012102989 and 31311012103007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142322782177 + ... + 142322782396.

It is an arithmetic number, because the mean of its divisors is an integer number (3842715121749).

Almost surely, 2^{31311012103030} is an apocalyptic number.

31311012103030 is a deficient number, since it is larger than the sum of its proper divisors (30172429844954).

31311012103030 is a wasteful number, since it uses less digits than its factorization.

31311012103030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284645564591.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 31311012103030 its reverse (3030121011313), we get a palindrome (34341133114343).

The spelling of 31311012103030 in words is "thirty-one trillion, three hundred eleven billion, twelve million, one hundred three thousand, thirty".