23103211320 has 192 divisors, whose sum is σ = 86094328320. Its totient is φ = 5263356672.

The previous prime is 23103211279. The next prime is 23103211337. The reversal of 23103211320 is 2311230132.

23103211320 is a `hidden beast` number, since 2 + 310 + 32 + 1 + 1 + 320 = 666.

It is a super-2 number, since 2×23103211320² (a number of 22 digits) contains 22 as substring.

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 = 23103211293 and 23103211302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 758709 + ... + 788571.

It is an arithmetic number, because the mean of its divisors is an integer number (448407960).

Almost surely, 2^23103211320 is an apocalyptic number.

23103211320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23103211320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43047164160).

23103211320 is an abundant number, since it is smaller than the sum of its proper divisors (62991117000).

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

23103211320 is a wasteful number, since it uses less digits than its factorization.

23103211320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30194 (or 30187 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23103211320 its reverse (2311230132), we get a palindrome (25414441452).

The spelling of 23103211320 in words is "twenty-three billion, one hundred three million, two hundred eleven thousand, three hundred twenty".