23203111323320 has 32 divisors (see below), whose sum is σ = 52209568897920. Its totient is φ = 9280787921280.

The previous prime is 23203111323251. The next prime is 23203111323367. The reversal of 23203111323320 is 2332311130232.

It is a self number, because there is not a number n which added to its sum of digits gives 23203111323320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13445192 + ... + 15072471.

It is an arithmetic number, because the mean of its divisors is an integer number (1631549028060).

Almost surely, 2^{23203111323320} is an apocalyptic number.

23203111323320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23203111323320 is an abundant number, since it is smaller than the sum of its proper divisors (29006457574600).

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

23203111323320 is a wasteful number, since it uses less digits than its factorization.

23203111323320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28538015 (or 28538011 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 23203111323320 its reverse (2332311130232), we get a palindrome (25535422453552).

The spelling of 23203111323320 in words is "twenty-three trillion, two hundred three billion, one hundred eleven million, three hundred twenty-three thousand, three hundred twenty".