31204312345450 has 24 divisors (see below), whose sum is σ = 58040186074272. Its totient is φ = 12481689430320.

The previous prime is 31204312345439. The next prime is 31204312345489. The reversal of 31204312345450 is 5454321340213.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23495067 + ... + 24787633.

It is an arithmetic number, because the mean of its divisors is an integer number (2418341086428).

Almost surely, 2^{31204312345450} is an apocalyptic number.

31204312345450 is a deficient number, since it is larger than the sum of its proper divisors (26835873728822).

31204312345450 is a wasteful number, since it uses less digits than its factorization.

31204312345450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775406 (or 1775401 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 31204312345450 its reverse (5454321340213), we get a palindrome (36658633685663).

The spelling of 31204312345450 in words is "thirty-one trillion, two hundred four billion, three hundred twelve million, three hundred forty-five thousand, four hundred fifty".