31223505000450 has 96 divisors (see below), whose sum is σ = 90654781472640. Its totient is φ = 6962732812800.

The previous prime is 31223505000449. The next prime is 31223505000463. The reversal of 31223505000450 is 5400050532213.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 362599285 + ... + 362685384.

It is an arithmetic number, because the mean of its divisors is an integer number (944320640340).

Almost surely, 2^{31223505000450} is an apocalyptic number.

31223505000450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31223505000450 is an abundant number, since it is smaller than the sum of its proper divisors (59431276472190).

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

31223505000450 is a wasteful number, since it uses less digits than its factorization.

31223505000450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725284732 (or 725284727 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 31223505000450 its reverse (5400050532213), we get a palindrome (36623555532663).

The spelling of 31223505000450 in words is "thirty-one trillion, two hundred twenty-three billion, five hundred five million, four hundred fifty", and thus it is an aban number.