1232434431551 has 8 divisors (see below), whose sum is σ = 1274967340320. Its totient is φ = 1189903867488.

The previous prime is 1232434431533. The next prime is 1232434431559. The reversal of 1232434431551 is 1551344342321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1232434431551 - 2²⁶ = 1232367322687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232434431559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518525 + ... + 1653401.

It is an arithmetic number, because the mean of its divisors is an integer number (159370917540).

Almost surely, 2^{1232434431551} is an apocalyptic number.

1232434431551 is a deficient number, since it is larger than the sum of its proper divisors (42532908769).

1232434431551 is a wasteful number, since it uses less digits than its factorization.

1232434431551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172353.

The product of its digits is 172800, while the sum is 38.

Adding to 1232434431551 its reverse (1551344342321), we get a palindrome (2783778773872).

The spelling of 1232434431551 in words is "one trillion, two hundred thirty-two billion, four hundred thirty-four million, four hundred thirty-one thousand, five hundred fifty-one".