1232553145431 has 16 divisors (see below), whose sum is σ = 1644471498240. Its totient is φ = 821168624640.

The previous prime is 1232553145403. The next prime is 1232553145469. The reversal of 1232553145431 is 1345413552321.

It is not a de Polignac number, because 1232553145431 - 2⁹ = 1232553144919 is a prime.

It is a super-2 number, since 2×1232553145431² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1232553145431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232553145471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32185111 + ... + 32223383.

It is an arithmetic number, because the mean of its divisors is an integer number (102779468640).

Almost surely, 2^{1232553145431} is an apocalyptic number.

1232553145431 is a deficient number, since it is larger than the sum of its proper divisors (411918352809).

1232553145431 is a wasteful number, since it uses less digits than its factorization.

1232553145431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44966.

The product of its digits is 216000, while the sum is 39.

Adding to 1232553145431 its reverse (1345413552321), we get a palindrome (2577966697752).

The spelling of 1232553145431 in words is "one trillion, two hundred thirty-two billion, five hundred fifty-three million, one hundred forty-five thousand, four hundred thirty-one".