1131230202123 has 8 divisors (see below), whose sum is σ = 1723779355648. Its totient is φ = 646417258344.

The previous prime is 1131230202097. The next prime is 1131230202127. The reversal of 1131230202123 is 3212020321311.

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

It is not a de Polignac number, because 1131230202123 - 2¹⁸ = 1131229939979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 53868104863 = 1131230202123 / (1 + 1 + 3 + 1 + 2 + 3 + 0 + 2 + 0 + 2 + 1 + 2 + 3).

It is a self number, because there is not a number n which added to its sum of digits gives 1131230202123.

It is not an unprimeable number, because it can be changed into a prime (1131230202127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26934052411 + ... + 26934052452.

It is an arithmetic number, because the mean of its divisors is an integer number (215472419456).

Almost surely, 2^{1131230202123} is an apocalyptic number.

1131230202123 is a deficient number, since it is larger than the sum of its proper divisors (592549153525).

1131230202123 is an equidigital number, since it uses as much as digits as its factorization.

1131230202123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53868104873.

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

Adding to 1131230202123 its reverse (3212020321311), we get a palindrome (4343250523434).

The spelling of 1131230202123 in words is "one trillion, one hundred thirty-one billion, two hundred thirty million, two hundred two thousand, one hundred twenty-three".