31230010233021 has 8 divisors (see below), whose sum is σ = 41640046031200. Its totient is φ = 20819990628432.

The previous prime is 31230010233017. The next prime is 31230010233043. The reversal of 31230010233021 is 12033201003213.

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

It is not a de Polignac number, because 31230010233021 - 2² = 31230010233017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31230010237021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1562430 + ... + 8056128.

It is an arithmetic number, because the mean of its divisors is an integer number (5205005753900).

Almost surely, 2^{31230010233021} is an apocalyptic number.

It is an amenable number.

31230010233021 is a deficient number, since it is larger than the sum of its proper divisors (10410035798179).

31230010233021 is a wasteful number, since it uses less digits than its factorization.

31230010233021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8096795.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31230010233021 its reverse (12033201003213), we get a palindrome (43263211236234).

The spelling of 31230010233021 in words is "thirty-one trillion, two hundred thirty billion, ten million, two hundred thirty-three thousand, twenty-one".