21032023122 has 48 divisors (see below), whose sum is σ = 49722847200. Its totient is φ = 6371956800.

The previous prime is 21032023063. The next prime is 21032023213. The reversal of 21032023122 is 22132023012.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21032023095 and 21032023104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1251129 + ... + 1267827.

It is an arithmetic number, because the mean of its divisors is an integer number (1035892650).

Almost surely, 2^21032023122 is an apocalyptic number.

21032023122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21032023122 is an abundant number, since it is smaller than the sum of its proper divisors (28690824078).

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

21032023122 is a wasteful number, since it uses less digits than its factorization.

21032023122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23079 (or 23076 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21032023122 its reverse (22132023012), we get a palindrome (43164046134).

The spelling of 21032023122 in words is "twenty-one billion, thirty-two million, twenty-three thousand, one hundred twenty-two".