31230023421102 has 32 divisors (see below), whose sum is σ = 68140328575104. Its totient is φ = 9463352397600.

The previous prime is 31230023421061. The next prime is 31230023421119. The reversal of 31230023421102 is 20112432003213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5109549 + ... + 9411032.

It is an arithmetic number, because the mean of its divisors is an integer number (2129385267972).

Almost surely, 2^{31230023421102} is an apocalyptic number.

31230023421102 is an abundant number, since it is smaller than the sum of its proper divisors (36910305154002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31230023421102 is a wasteful number, since it uses less digits than its factorization.

31230023421102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14553184.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31230023421102 its reverse (20112432003213), we get a palindrome (51342455424315).

The spelling of 31230023421102 in words is "thirty-one trillion, two hundred thirty billion, twenty-three million, four hundred twenty-one thousand, one hundred two".