20342513320 has 16 divisors (see below), whose sum is σ = 45770655060. Its totient is φ = 8137005312.

The previous prime is 20342513297. The next prime is 20342513341. The reversal of 20342513320 is 2331524302.

It can be written as a sum of positive squares in 2 ways, for example, as 18937612996 + 1404900324 = 137614^2 + 37482^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254281377 + ... + 254281456.

Almost surely, 2^20342513320 is an apocalyptic number.

20342513320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20342513320 is an abundant number, since it is smaller than the sum of its proper divisors (25428141740).

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

20342513320 is a wasteful number, since it uses less digits than its factorization.

20342513320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508562844 (or 508562840 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The spelling of 20342513320 in words is "twenty billion, three hundred forty-two million, five hundred thirteen thousand, three hundred twenty".