1031130121123 has 4 divisors (see below), whose sum is σ = 1031132626240. Its totient is φ = 1031127616008.

The previous prime is 1031130121111. The next prime is 1031130121157. The reversal of 1031130121123 is 3211210311301.

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 1031130121123 - 2⁹ = 1031130120611 is a prime.

It is a super-2 number, since 2×1031130121123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1031130121123.

It is not an unprimeable number, because it can be changed into a prime (1031130121183) 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, 473715 + ... + 1512172.

It is an arithmetic number, because the mean of its divisors is an integer number (257783156560).

Almost surely, 2^{1031130121123} is an apocalyptic number.

1031130121123 is a deficient number, since it is larger than the sum of its proper divisors (2505117).

1031130121123 is an equidigital number, since it uses as much as digits as its factorization.

1031130121123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505116.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1031130121123 its reverse (3211210311301), we get a palindrome (4242340432424).

The spelling of 1031130121123 in words is "one trillion, thirty-one billion, one hundred thirty million, one hundred twenty-one thousand, one hundred twenty-three".