42012133131 has 32 divisors (see below), whose sum is σ = 59095277568. Its totient is φ = 26509115520.

The previous prime is 42012133103. The next prime is 42012133169. The reversal of 42012133131 is 13133121024.

It is not a de Polignac number, because 42012133131 - 2⁹ = 42012132619 is a prime.

It is a super-2 number, since 2×42012133131² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42012133098 and 42012133107.

It is not an unprimeable number, because it can be changed into a prime (42012133231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8726481 + ... + 8731293.

It is an arithmetic number, because the mean of its divisors is an integer number (1846727424).

Almost surely, 2^42012133131 is an apocalyptic number.

42012133131 is a deficient number, since it is larger than the sum of its proper divisors (17083144437).

42012133131 is a wasteful number, since it uses less digits than its factorization.

42012133131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6891.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 42012133131 its reverse (13133121024), we get a palindrome (55145254155).

The spelling of 42012133131 in words is "forty-two billion, twelve million, one hundred thirty-three thousand, one hundred thirty-one".