1210000131031 has 4 divisors (see below), whose sum is σ = 1215330528312. Its totient is φ = 1204669733752.

The previous prime is 1210000130987. The next prime is 1210000131071. The reversal of 1210000131031 is 1301310000121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1210000131031 - 2⁹ = 1210000130519 is a prime.

It is a super-2 number, since 2×1210000131031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210000131071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2665198300 + ... + 2665198753.

It is an arithmetic number, because the mean of its divisors is an integer number (303832632078).

Almost surely, 2^{1210000131031} is an apocalyptic number.

1210000131031 is a deficient number, since it is larger than the sum of its proper divisors (5330397281).

1210000131031 is an equidigital number, since it uses as much as digits as its factorization.

1210000131031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5330397280.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 1210000131031 its reverse (1301310000121), we get a palindrome (2511310131152).

The spelling of 1210000131031 in words is "one trillion, two hundred ten billion, one hundred thirty-one thousand, thirty-one".