31203120022 has 8 divisors (see below), whose sum is σ = 47893161096. Its totient is φ = 15238732992.

The previous prime is 31203120017. The next prime is 31203120041. The reversal of 31203120022 is 22002130213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31203119978 and 31203120005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181413403 + ... + 181413574.

It is an arithmetic number, because the mean of its divisors is an integer number (5986645137).

Almost surely, 2^31203120022 is an apocalyptic number.

31203120022 is a deficient number, since it is larger than the sum of its proper divisors (16690041074).

31203120022 is a wasteful number, since it uses less digits than its factorization.

31203120022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362827022.

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

Adding to 31203120022 its reverse (22002130213), we get a palindrome (53205250235).

The spelling of 31203120022 in words is "thirty-one billion, two hundred three million, one hundred twenty thousand, twenty-two".