31231232212003 has 16 divisors (see below), whose sum is σ = 32721158324224. Its totient is φ = 29771495930880.

The previous prime is 31231232211989. The next prime is 31231232212009. The reversal of 31231232212003 is 30021223213213.

It is a de Polignac number, because none of the positive numbers 2^k-31231232212003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31231232212009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54750526 + ... + 55318012.

It is an arithmetic number, because the mean of its divisors is an integer number (2045072395264).

Almost surely, 2^{31231232212003} is an apocalyptic number.

31231232212003 is a deficient number, since it is larger than the sum of its proper divisors (1489926112221).

31231232212003 is a wasteful number, since it uses less digits than its factorization.

31231232212003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594082.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31231232212003 its reverse (30021223213213), we get a palindrome (61252455425216).

The spelling of 31231232212003 in words is "thirty-one trillion, two hundred thirty-one billion, two hundred thirty-two million, two hundred twelve thousand, three".