1232310432561 has 64 divisors (see below), whose sum is σ = 1899328435200. Its totient is φ = 704288542464.

The previous prime is 1232310432553. The next prime is 1232310432607. The reversal of 1232310432561 is 1652340132321.

It is not a de Polignac number, because 1232310432561 - 2³ = 1232310432553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1232310432161) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49432246 + ... + 49457168.

It is an arithmetic number, because the mean of its divisors is an integer number (29677006800).

Almost surely, 2^{1232310432561} is an apocalyptic number.

It is an amenable number.

1232310432561 is a deficient number, since it is larger than the sum of its proper divisors (667018002639).

1232310432561 is a wasteful number, since it uses less digits than its factorization.

1232310432561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26270.

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 1232310432561 its reverse (1652340132321), we get a palindrome (2884650564882).

The spelling of 1232310432561 in words is "one trillion, two hundred thirty-two billion, three hundred ten million, four hundred thirty-two thousand, five hundred sixty-one".