31123303030130 has 64 divisors (see below), whose sum is σ = 56742996344832. Its totient is φ = 12290085339840.

The previous prime is 31123303030097. The next prime is 31123303030153. The reversal of 31123303030130 is 3103030332113.

It is a junction number, because it is equal to n+sod(n) for n = 31123303030096 and 31123303030105.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1620404987 + ... + 1620424193.

It is an arithmetic number, because the mean of its divisors is an integer number (886609317888).

Almost surely, 2^{31123303030130} is an apocalyptic number.

31123303030130 is a deficient number, since it is larger than the sum of its proper divisors (25619693314702).

31123303030130 is a wasteful number, since it uses less digits than its factorization.

31123303030130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25599.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 31123303030130 its reverse (3103030332113), we get a palindrome (34226333362243).

The spelling of 31123303030130 in words is "thirty-one trillion, one hundred twenty-three billion, three hundred three million, thirty thousand, one hundred thirty".