1231430045504 has 28 divisors (see below), whose sum is σ = 2443708550724. Its totient is φ = 615692457984.

The previous prime is 1231430045467. The next prime is 1231430045557. The reversal of 1231430045504 is 4055400341321.

It can be written as a sum of positive squares in 2 ways, for example, as 253862807104 + 977567238400 = 503848^2 + 988720^2 .

It is a super-2 number, since 2×1231430045504² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1481354 + ... + 2158070.

It is an arithmetic number, because the mean of its divisors is an integer number (87275305383).

Almost surely, 2^{1231430045504} is an apocalyptic number.

It is an amenable number.

1231430045504 is a deficient number, since it is larger than the sum of its proper divisors (1212278505220).

1231430045504 is an equidigital number, since it uses as much as digits as its factorization.

1231430045504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705162 (or 705152 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 1231430045504 its reverse (4055400341321), we get a palindrome (5286830386825).

The spelling of 1231430045504 in words is "one trillion, two hundred thirty-one billion, four hundred thirty million, forty-five thousand, five hundred four".