1231110203113 has 8 divisors (see below), whose sum is σ = 1406993251328. Its totient is φ = 1055229695424.

The previous prime is 1231110203083. The next prime is 1231110203143. The reversal of 1231110203113 is 3113020111321.

It is an interprime number because it is at equal distance from previous prime (1231110203083) and next prime (1231110203143).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1231110203113 - 2¹⁷ = 1231110072041 is a prime.

It is a super-2 number, since 2×1231110203113² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1231110203143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550945 + ... + 1663057.

It is an arithmetic number, because the mean of its divisors is an integer number (175874156416).

Almost surely, 2^{1231110203113} is an apocalyptic number.

It is an amenable number.

1231110203113 is a deficient number, since it is larger than the sum of its proper divisors (175883048215).

1231110203113 is a wasteful number, since it uses less digits than its factorization.

1231110203113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270263.

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

Adding to 1231110203113 its reverse (3113020111321), we get a palindrome (4344130314434).

The spelling of 1231110203113 in words is "one trillion, two hundred thirty-one billion, one hundred ten million, two hundred three thousand, one hundred thirteen".