30131031022 has 16 divisors (see below), whose sum is σ = 47666309760. Its totient is φ = 14245294392.

The previous prime is 30131031017. The next prime is 30131031023. The reversal of 30131031022 is 22013013103.

It is a junction number, because it is equal to n+sod(n) for n = 30131030987 and 30131031005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30131031023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 738178 + ... + 777925.

It is an arithmetic number, because the mean of its divisors is an integer number (2979144360).

Almost surely, 2^30131031022 is an apocalyptic number.

30131031022 is a deficient number, since it is larger than the sum of its proper divisors (17535278738).

30131031022 is a wasteful number, since it uses less digits than its factorization.

30131031022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516647.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30131031022 its reverse (22013013103), we get a palindrome (52144044125).

The spelling of 30131031022 in words is "thirty billion, one hundred thirty-one million, thirty-one thousand, twenty-two".