20233512420 has 96 divisors (see below), whose sum is σ = 62128152576. Its totient is φ = 4879382400.

The previous prime is 20233512389. The next prime is 20233512427. The reversal of 20233512420 is 2421533202.

It is not an unprimeable number, because it can be changed into a prime (20233512427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45807 + ... + 206313.

It is an arithmetic number, because the mean of its divisors is an integer number (647168256).

Almost surely, 2^20233512420 is an apocalyptic number.

20233512420 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 20233512420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31064076288).

20233512420 is an abundant number, since it is smaller than the sum of its proper divisors (41894640156).

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

20233512420 is a wasteful number, since it uses less digits than its factorization.

20233512420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160721 (or 160719 counting only the distinct ones).

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

The spelling of 20233512420 in words is "twenty billion, two hundred thirty-three million, five hundred twelve thousand, four hundred twenty".