31002121102 has 8 divisors (see below), whose sum is σ = 46914714576. Its totient is φ = 15363882912.

The previous prime is 31002121099. The next prime is 31002121109. The reversal of 31002121102 is 20112120013.

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

It is a super-2 number, since 2×31002121102² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31002121109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68588538 + ... + 68588989.

It is an arithmetic number, because the mean of its divisors is an integer number (5864339322).

Almost surely, 2^31002121102 is an apocalyptic number.

31002121102 is a deficient number, since it is larger than the sum of its proper divisors (15912593474).

31002121102 is a wasteful number, since it uses less digits than its factorization.

31002121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137177642.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 31002121102 its reverse (20112120013), we get a palindrome (51114241115).

The spelling of 31002121102 in words is "thirty-one billion, two million, one hundred twenty-one thousand, one hundred two".