23120435040 has 96 divisors (see below), whose sum is σ = 73916478720. Its totient is φ = 6073419264.

The previous prime is 23120435017. The next prime is 23120435053. The reversal of 23120435040 is 4053402132.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 23120435040.

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, 327300 + ... + 391619.

It is an arithmetic number, because the mean of its divisors is an integer number (769963320).

Almost surely, 2^23120435040 is an apocalyptic number.

23120435040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23120435040 is an abundant number, since it is smaller than the sum of its proper divisors (50796043680).

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

23120435040 is a wasteful number, since it uses less digits than its factorization.

23120435040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719004 (or 718996 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 23120435040 its reverse (4053402132), we get a palindrome (27173837172).

The spelling of 23120435040 in words is "twenty-three billion, one hundred twenty million, four hundred thirty-five thousand, forty".