2631115212 has 48 divisors (see below), whose sum is σ = 7049884800. Its totient is φ = 755343360.

The previous prime is 2631115187. The next prime is 2631115213. The reversal of 2631115212 is 2125111362.

It is a happy number.

2631115212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2631115213) 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, 522037 + ... + 527052.

It is an arithmetic number, because the mean of its divisors is an integer number (146872600).

Almost surely, 2^2631115212 is an apocalyptic number.

2631115212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2631115212 is an abundant number, since it is smaller than the sum of its proper divisors (4418769588).

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

2631115212 is a wasteful number, since it uses less digits than its factorization.

2631115212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049126 (or 1049124 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The square root of 2631115212 is about 51294.3974718487. The cubic root of 2631115212 is about 1380.5324578366.

Adding to 2631115212 its reverse (2125111362), we get a palindrome (4756226574).

The spelling of 2631115212 in words is "two billion, six hundred thirty-one million, one hundred fifteen thousand, two hundred twelve".