23110781126840 has 64 divisors (see below), whose sum is σ = 56728637521920. Its totient is φ = 8403598224000.

The previous prime is 23110781126837. The next prime is 23110781126897. The reversal of 23110781126840 is 4862118701132.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 23110781126791 and 23110781126800.

It is a congruent number.

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, 10636025 + ... + 12623255.

It is an arithmetic number, because the mean of its divisors is an integer number (886384961280).

Almost surely, 2^{23110781126840} is an apocalyptic number.

23110781126840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23110781126840 is an abundant number, since it is smaller than the sum of its proper divisors (33617856395080).

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

23110781126840 is a wasteful number, since it uses less digits than its factorization.

23110781126840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013684 (or 2013680 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

Adding to 23110781126840 its reverse (4862118701132), we get a palindrome (27972899827972).

The spelling of 23110781126840 in words is "twenty-three trillion, one hundred ten billion, seven hundred eighty-one million, one hundred twenty-six thousand, eight hundred forty".