23103312020 has 24 divisors (see below), whose sum is σ = 49312317768. Its totient is φ = 9089827200.

The previous prime is 23103312013. The next prime is 23103312109. The reversal of 23103312020 is 2021330132.

It can be written as a sum of positive squares in 4 ways, for example, as 3252192784 + 19851119236 = 57028^2 + 140894^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23103312020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9467351 + ... + 9469790.

It is an arithmetic number, because the mean of its divisors is an integer number (2054679907).

Almost surely, 2^23103312020 is an apocalyptic number.

23103312020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23103312020 is an abundant number, since it is smaller than the sum of its proper divisors (26209005748).

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

23103312020 is a wasteful number, since it uses less digits than its factorization.

23103312020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18937211 (or 18937209 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 23103312020 its reverse (2021330132), we get a palindrome (25124642152).

The spelling of 23103312020 in words is "twenty-three billion, one hundred three million, three hundred twelve thousand, twenty".