1210005005131 has 16 divisors (see below), whose sum is σ = 1328721498720. Its totient is φ = 1095052769280.

The previous prime is 1210005005087. The next prime is 1210005005161. The reversal of 1210005005131 is 1315005000121.

It is a cyclic number.

It is not a de Polignac number, because 1210005005131 - 2⁹ = 1210005004619 is a prime.

It is a super-2 number, since 2×1210005005131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1210005005099 and 1210005005108.

It is not an unprimeable number, because it can be changed into a prime (1210005005161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1828630 + ... + 2400811.

It is an arithmetic number, because the mean of its divisors is an integer number (83045093670).

Almost surely, 2^{1210005005131} is an apocalyptic number.

1210005005131 is a deficient number, since it is larger than the sum of its proper divisors (118716493589).

1210005005131 is a wasteful number, since it uses less digits than its factorization.

1210005005131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4229886.

The product of its (nonzero) digits is 150, while the sum is 19.

The spelling of 1210005005131 in words is "one trillion, two hundred ten billion, five million, five thousand, one hundred thirty-one".