10131311212 has 24 divisors (see below), whose sum is σ = 19533103632. Its totient is φ = 4559544000.

The previous prime is 10131311189. The next prime is 10131311219. The reversal of 10131311212 is 21211313101.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (10131311219) 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, 1135443 + ... + 1144330.

It is an arithmetic number, because the mean of its divisors is an integer number (813879318).

Almost surely, 2^10131311212 is an apocalyptic number.

It is an amenable number.

10131311212 is a deficient number, since it is larger than the sum of its proper divisors (9401792420).

10131311212 is a wasteful number, since it uses less digits than its factorization.

10131311212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279889 (or 2279887 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 10131311212 its reverse (21211313101), we get a palindrome (31342624313).

It can be divided in two parts, 101 and 31311212, that added together give a palindrome (31311313).

The spelling of 10131311212 in words is "ten billion, one hundred thirty-one million, three hundred eleven thousand, two hundred twelve".