23401532220 has 48 divisors (see below), whose sum is σ = 71481045888. Its totient is φ = 5673098560.

The previous prime is 23401532131. The next prime is 23401532251. The reversal of 23401532220 is 2223510432.

It is a super-3 number, since 3×23401532220³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17727774 + ... + 17729093.

It is an arithmetic number, because the mean of its divisors is an integer number (1489188456).

Almost surely, 2^23401532220 is an apocalyptic number.

23401532220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23401532220 is an abundant number, since it is smaller than the sum of its proper divisors (48079513668).

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

23401532220 is a wasteful number, since it uses less digits than its factorization.

23401532220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35456890 (or 35456888 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The spelling of 23401532220 in words is "twenty-three billion, four hundred one million, five hundred thirty-two thousand, two hundred twenty".