1232453151531 has 12 divisors (see below), whose sum is σ = 2034525837552. Its totient is φ = 704258943696.

The previous prime is 1232453151511. The next prime is 1232453151539. The reversal of 1232453151531 is 1351513542321.

It is a happy number.

1232453151531 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 45 + 31 + 51 + 531 = 666.

It is not a de Polignac number, because 1232453151531 - 2¹⁵ = 1232453118763 is a prime.

It is a super-2 number, since 2×1232453151531² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1232453151539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9781374156 + ... + 9781374281.

It is an arithmetic number, because the mean of its divisors is an integer number (169543819796).

Almost surely, 2^{1232453151531} is an apocalyptic number.

1232453151531 is a deficient number, since it is larger than the sum of its proper divisors (802072686021).

1232453151531 is a wasteful number, since it uses less digits than its factorization.

1232453151531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19562748450 (or 19562748447 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

Adding to 1232453151531 its reverse (1351513542321), we get a palindrome (2583966693852).

The spelling of 1232453151531 in words is "one trillion, two hundred thirty-two billion, four hundred fifty-three million, one hundred fifty-one thousand, five hundred thirty-one".