131101323012 has 60 divisors (see below), whose sum is σ = 373881560976. Its totient is φ = 39727672560.

The previous prime is 131101322981. The next prime is 131101323013. The reversal of 131101323012 is 210323101131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (131101323013) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18388878 + ... + 18396005.

Almost surely, 2^131101323012 is an apocalyptic number.

131101323012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131101323012 is an abundant number, since it is smaller than the sum of its proper divisors (242780237964).

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

131101323012 is a wasteful number, since it uses less digits than its factorization.

131101323012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36784910 (or 36784899 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 131101323012 its reverse (210323101131), we get a palindrome (341424424143).

It can be divided in two parts, 1311013 and 23012, that added together give a square (1334025 = 1155²).

The spelling of 131101323012 in words is "one hundred thirty-one billion, one hundred one million, three hundred twenty-three thousand, twelve".