23047531388 has 24 divisors (see below), whose sum is σ = 46158508032. Its totient is φ = 9863918064.

The previous prime is 23047531387. The next prime is 23047531421. The reversal of 23047531388 is 88313574032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23047531387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545756 + ... + 586467.

It is an arithmetic number, because the mean of its divisors is an integer number (1923271168).

Almost surely, 2^23047531388 is an apocalyptic number.

23047531388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23047531388 is an abundant number, since it is smaller than the sum of its proper divisors (23110976644).

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

23047531388 is a wasteful number, since it uses less digits than its factorization.

23047531388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132961 (or 1132959 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 23047531388 in words is "twenty-three billion, forty-seven million, five hundred thirty-one thousand, three hundred eighty-eight".