1312432023 has 24 divisors (see below), whose sum is σ = 2050285440. Its totient is φ = 744554160.

The previous prime is 1312432021. The next prime is 1312432157. The reversal of 1312432023 is 3202342131.

It is not a de Polignac number, because 1312432023 - 2¹ = 1312432021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312432021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11683 + ... + 52548.

It is an arithmetic number, because the mean of its divisors is an integer number (85428560).

Almost surely, 2^1312432023 is an apocalyptic number.

1312432023 is a deficient number, since it is larger than the sum of its proper divisors (737853417).

1312432023 is a wasteful number, since it uses less digits than its factorization.

1312432023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64387 (or 64380 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1312432023 is about 36227.5036815953. The cubic root of 1312432023 is about 1094.8608826410.

Adding to 1312432023 its reverse (3202342131), we get a palindrome (4514774154).

The spelling of 1312432023 in words is "one billion, three hundred twelve million, four hundred thirty-two thousand, twenty-three".