23131223531040 has 48 divisors (see below), whose sum is σ = 72863354124288. Its totient is φ = 6168326274816.

The previous prime is 23131223531033. The next prime is 23131223531047. The reversal of 23131223531040 is 4013532213132.

It is an interprime number because it is at equal distance from previous prime (23131223531033) and next prime (23131223531047).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 23131223530989 and 23131223531007.

It is not an unprimeable number, because it can be changed into a prime (23131223531047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24095024032 + ... + 24095024991.

It is an arithmetic number, because the mean of its divisors is an integer number (1517986544256).

Almost surely, 2^{23131223531040} is an apocalyptic number.

23131223531040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23131223531040 is an abundant number, since it is smaller than the sum of its proper divisors (49732130593248).

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

23131223531040 is a wasteful number, since it uses less digits than its factorization.

23131223531040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48190049041 (or 48190049033 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 23131223531040 its reverse (4013532213132), we get a palindrome (27144755744172).

The spelling of 23131223531040 in words is "twenty-three trillion, one hundred thirty-one billion, two hundred twenty-three million, five hundred thirty-one thousand, forty".