23311400442 has 24 divisors (see below), whose sum is σ = 51246551328. Its totient is φ = 7064060520.

The previous prime is 23311400419. The next prime is 23311400443. The reversal of 23311400442 is 24400411332.

It is not an unprimeable number, because it can be changed into a prime (23311400443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16053958 + ... + 16055409.

It is an arithmetic number, because the mean of its divisors is an integer number (2135272972).

Almost surely, 2^23311400442 is an apocalyptic number.

23311400442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23311400442 is an abundant number, since it is smaller than the sum of its proper divisors (27935150886).

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

23311400442 is a wasteful number, since it uses less digits than its factorization.

23311400442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32109394 (or 32109383 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 23311400442 its reverse (24400411332), we get a palindrome (47711811774).

The spelling of 23311400442 in words is "twenty-three billion, three hundred eleven million, four hundred thousand, four hundred forty-two".