131000012001 has 24 divisors (see below), whose sum is σ = 193659504896. Its totient is φ = 85286144160.

The previous prime is 131000011973. The next prime is 131000012023. The reversal of 131000012001 is 100210000131.

It is not a de Polignac number, because 131000012001 - 2⁶ = 131000011937 is a prime.

It is a super-2 number, since 2×131000012001² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131000012051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2211891 + ... + 2270343.

Almost surely, 2^131000012001 is an apocalyptic number.

It is an amenable number.

131000012001 is a deficient number, since it is larger than the sum of its proper divisors (62659492895).

131000012001 is a wasteful number, since it uses less digits than its factorization.

131000012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64293 (or 64290 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 131000012001 its reverse (100210000131), we get a palindrome (231210012132).

The spelling of 131000012001 in words is "one hundred thirty-one billion, twelve thousand, one".