23031043140 has 48 divisors (see below), whose sum is σ = 73699339392. Its totient is φ = 5264238336.

The previous prime is 23031043127. The next prime is 23031043151. The reversal of 23031043140 is 4134013032.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27417489 + ... + 27418328.

It is an arithmetic number, because the mean of its divisors is an integer number (1535402904).

Almost surely, 2^23031043140 is an apocalyptic number.

23031043140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23031043140 is an abundant number, since it is smaller than the sum of its proper divisors (50668296252).

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

23031043140 is a wasteful number, since it uses less digits than its factorization.

23031043140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54835836 (or 54835834 counting only the distinct ones).

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

Adding to 23031043140 its reverse (4134013032), we get a palindrome (27165056172).

The spelling of 23031043140 in words is "twenty-three billion, thirty-one million, forty-three thousand, one hundred forty".