1231430255432 has 32 divisors (see below), whose sum is σ = 2509780593600. Its totient is φ = 563040715584.

The previous prime is 1231430255389. The next prime is 1231430255443. The reversal of 1231430255432 is 2345520341321.

It is a junction number, because it is equal to n+sod(n) for n = 1231430255392 and 1231430255401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55319132 + ... + 55341387.

It is an arithmetic number, because the mean of its divisors is an integer number (78430643550).

Almost surely, 2^{1231430255432} is an apocalyptic number.

It is an amenable number.

1231430255432 is an abundant number, since it is smaller than the sum of its proper divisors (1278350338168).

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

1231430255432 is a wasteful number, since it uses less digits than its factorization.

1231430255432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110660645 (or 110660641 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 1231430255432 its reverse (2345520341321), we get a palindrome (3576950596753).

The spelling of 1231430255432 in words is "one trillion, two hundred thirty-one billion, four hundred thirty million, two hundred fifty-five thousand, four hundred thirty-two".