31230210022 has 16 divisors (see below), whose sum is σ = 52292446272. Its totient is φ = 13865420520.

The previous prime is 31230210019. The next prime is 31230210031. The reversal of 31230210022 is 22001203213.

It is a junction number, because it is equal to n+sod(n) for n = 31230209978 and 31230210005.

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, 16505508 + ... + 16507399.

It is an arithmetic number, because the mean of its divisors is an integer number (3268277892).

Almost surely, 2^31230210022 is an apocalyptic number.

31230210022 is a deficient number, since it is larger than the sum of its proper divisors (21062236250).

31230210022 is a wasteful number, since it uses less digits than its factorization.

31230210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33012963.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 31230210022 its reverse (22001203213), we get a palindrome (53231413235).

The spelling of 31230210022 in words is "thirty-one billion, two hundred thirty million, two hundred ten thousand, twenty-two".