2012123031 has 8 divisors (see below), whose sum is σ = 2720617344. Its totient is φ = 1322522040.

The previous prime is 2012123027. The next prime is 2012123059. The reversal of 2012123031 is 1303212102.

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

It is not a de Polignac number, because 2012123031 - 2² = 2012123027 is a prime.

It is a super-2 number, since 2×2012123031² = 8097278183761253922, 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 2012123031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012123021) 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, 4723081 + ... + 4723506.

It is an arithmetic number, because the mean of its divisors is an integer number (340077168).

Almost surely, 2^2012123031 is an apocalyptic number.

2012123031 is a deficient number, since it is larger than the sum of its proper divisors (708494313).

2012123031 is an equidigital number, since it uses as much as digits as its factorization.

2012123031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9446661.

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

The square root of 2012123031 is about 44856.6943833359. The cubic root of 2012123031 is about 1262.4616005835.

Adding to 2012123031 its reverse (1303212102), we get a palindrome (3315335133).

The spelling of 2012123031 in words is "two billion, twelve million, one hundred twenty-three thousand, thirty-one".