2012321031 has 8 divisors (see below), whose sum is σ = 3066393984. Its totient is φ = 1149897720.

The previous prime is 2012320997. The next prime is 2012321053. The reversal of 2012321031 is 1301232102.

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

It is not a de Polignac number, because 2012321031 - 2²² = 2008126727 is a prime.

It is a super-2 number, since 2×2012321031² = 8098871863609805922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2012321031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012321231) 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, 47912385 + ... + 47912426.

It is an arithmetic number, because the mean of its divisors is an integer number (383299248).

Almost surely, 2^2012321031 is an apocalyptic number.

2012321031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2012321031 is a deficient number, since it is larger than the sum of its proper divisors (1054072953).

2012321031 is an equidigital number, since it uses as much as digits as its factorization.

2012321031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95824821.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2012321031 is about 44858.9013574787. The cubic root of 2012321031 is about 1262.5030094494.

Adding to 2012321031 its reverse (1301232102), we get a palindrome (3313553133).

It can be divided in two parts, 201 and 2321031, that added together give a palindrome (2321232).

The spelling of 2012321031 in words is "two billion, twelve million, three hundred twenty-one thousand, thirty-one".