23211890100 has 216 divisors, whose sum is σ = 88041739968. Its totient is φ = 4993459200.

The previous prime is 23211890033. The next prime is 23211890111. The reversal of 23211890100 is 109811232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1266 + ... + 215465.

It is an arithmetic number, because the mean of its divisors is an integer number (407600648).

Almost surely, 2^23211890100 is an apocalyptic number.

23211890100 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 23211890100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44020869984).

23211890100 is an abundant number, since it is smaller than the sum of its proper divisors (64829849868).

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

23211890100 is a wasteful number, since it uses less digits than its factorization.

23211890100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216775 (or 216765 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The spelling of 23211890100 in words is "twenty-three billion, two hundred eleven million, eight hundred ninety thousand, one hundred".