1231102223424 has 84 divisors (see below), whose sum is σ = 3536592075900. Its totient is φ = 409453363200.

The previous prime is 1231102223411. The next prime is 1231102223441. The reversal of 1231102223424 is 4243222011321.

1231102223424 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 10 + 2 + 223 + 424 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 628975886400 + 602126337024 = 793080^2 + 775968^2 .

It is a super-2 number, since 2×1231102223424² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2121477 + ... + 2638724.

Almost surely, 2^{1231102223424} is an apocalyptic number.

It is an amenable number.

1231102223424 is an abundant number, since it is smaller than the sum of its proper divisors (2305489852476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231102223424 is a wasteful number, since it uses less digits than its factorization.

1231102223424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4760668 (or 4760655 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1231102223424 its reverse (4243222011321), we get a palindrome (5474324234745).

The spelling of 1231102223424 in words is "one trillion, two hundred thirty-one billion, one hundred two million, two hundred twenty-three thousand, four hundred twenty-four".