131201242101012 has 24 divisors (see below), whose sum is σ = 306137425994176. Its totient is φ = 43733576734848.

The previous prime is 131201242100977. The next prime is 131201242101019. The reversal of 131201242101012 is 210101242102131.

It is a super-2 number, since 2×131201242101012² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131201242101012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131201242101019) 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, 18105733 + ... + 24294444.

Almost surely, 2^{131201242101012} is an apocalyptic number.

131201242101012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131201242101012 is an abundant number, since it is smaller than the sum of its proper divisors (174936183893164).

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

131201242101012 is a wasteful number, since it uses less digits than its factorization.

131201242101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42658047 (or 42658045 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 131201242101012 its reverse (210101242102131), we get a palindrome (341302484203143).

The spelling of 131201242101012 in words is "one hundred thirty-one trillion, two hundred one billion, two hundred forty-two million, one hundred one thousand, twelve".