1144400131323 has 48 divisors (see below), whose sum is σ = 1767594157056. Its totient is φ = 739354716000.

The previous prime is 1144400131309. The next prime is 1144400131333. The reversal of 1144400131323 is 3231310044411.

1144400131323 is a `hidden beast` number, since 114 + 4 + 400 + 13 + 132 + 3 = 666.

It is not a de Polignac number, because 1144400131323 - 2²⁰ = 1144399082747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1144400131333) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2003190 + ... + 2510292.

It is an arithmetic number, because the mean of its divisors is an integer number (36824878272).

Almost surely, 2^{1144400131323} is an apocalyptic number.

1144400131323 is a deficient number, since it is larger than the sum of its proper divisors (623194025733).

1144400131323 is an equidigital number, since it uses as much as digits as its factorization.

1144400131323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507406 (or 507394 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 1144400131323 its reverse (3231310044411), we get a palindrome (4375710175734).

The spelling of 1144400131323 in words is "one trillion, one hundred forty-four billion, four hundred million, one hundred thirty-one thousand, three hundred twenty-three".