1231167632 has 40 divisors (see below), whose sum is σ = 2477520000. Its totient is φ = 592253312.

The previous prime is 1231167629. The next prime is 1231167647. The reversal of 1231167632 is 2367611321.

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, 30494 + ... + 58242.

It is an arithmetic number, because the mean of its divisors is an integer number (61938000).

Almost surely, 2^1231167632 is an apocalyptic number.

It is an amenable number.

1231167632 is an abundant number, since it is smaller than the sum of its proper divisors (1246352368).

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

1231167632 is a wasteful number, since it uses less digits than its factorization.

1231167632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27863 (or 27857 counting only the distinct ones).

The product of its digits is 9072, while the sum is 32.

The square root of 1231167632 is about 35087.9984040127. The cubic root of 1231167632 is about 1071.7802001650.

Adding to 1231167632 its reverse (2367611321), we get a palindrome (3598778953).

The spelling of 1231167632 in words is "one billion, two hundred thirty-one million, one hundred sixty-seven thousand, six hundred thirty-two".