31020312203102 has 8 divisors (see below), whose sum is σ = 48134967211800. Its totient is φ = 14975323132504.

The previous prime is 31020312203099. The next prime is 31020312203143. The reversal of 31020312203102 is 20130221302013.

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

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, 267416484452 + ... + 267416484567.

It is an arithmetic number, because the mean of its divisors is an integer number (6016870901475).

Almost surely, 2^{31020312203102} is an apocalyptic number.

31020312203102 is a deficient number, since it is larger than the sum of its proper divisors (17114655008698).

31020312203102 is a wasteful number, since it uses less digits than its factorization.

31020312203102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534832969050.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31020312203102 its reverse (20130221302013), we get a palindrome (51150533505115).

The spelling of 31020312203102 in words is "thirty-one trillion, twenty billion, three hundred twelve million, two hundred three thousand, one hundred two".