20154313020 has 24 divisors (see below), whose sum is σ = 56432076624. Its totient is φ = 5374483456.

The previous prime is 20154313009. The next prime is 20154313027. The reversal of 20154313020 is 2031345102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20154313027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167952549 + ... + 167952668.

It is an arithmetic number, because the mean of its divisors is an integer number (2351336526).

Almost surely, 2^20154313020 is an apocalyptic number.

20154313020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20154313020 is an abundant number, since it is smaller than the sum of its proper divisors (36277763604).

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

20154313020 is a wasteful number, since it uses less digits than its factorization.

20154313020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335905229 (or 335905227 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 20154313020 its reverse (2031345102), we get a palindrome (22185658122).

The spelling of 20154313020 in words is "twenty billion, one hundred fifty-four million, three hundred thirteen thousand, twenty".