131033001231 has 48 divisors (see below), whose sum is σ = 217458483840. Its totient is φ = 75194429760.

The previous prime is 131033001227. The next prime is 131033001233. The reversal of 131033001231 is 132100330131.

It is a happy number.

131033001231 is a `hidden beast` number, since 1 + 310 + 330 + 0 + 1 + 23 + 1 = 666.

It is not a de Polignac number, because 131033001231 - 2² = 131033001227 is a prime.

It is a super-2 number, since 2×131033001231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131033001233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3738916 + ... + 3773798.

It is an arithmetic number, because the mean of its divisors is an integer number (4530385080).

Almost surely, 2^131033001231 is an apocalyptic number.

131033001231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131033001231 is a deficient number, since it is larger than the sum of its proper divisors (86425482609).

131033001231 is a wasteful number, since it uses less digits than its factorization.

131033001231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36916 (or 36913 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 131033001231 its reverse (132100330131), we get a palindrome (263133331362).

Subtracting 131033001231 from its reverse (132100330131), we obtain a square (1067328900 = 32670²).

The spelling of 131033001231 in words is "one hundred thirty-one billion, thirty-three million, one thousand, two hundred thirty-one".