20342309112 has 64 divisors (see below), whose sum is σ = 59480448000. Its totient is φ = 6423885792.

The previous prime is 20342309023. The next prime is 20342309149. The reversal of 20342309112 is 21190324302.

It is a happy number.

20342309112 is a `hidden beast` number, since 2 + 0 + 342 + 309 + 1 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2474248 + ... + 2482455.

It is an arithmetic number, because the mean of its divisors is an integer number (929382000).

Almost surely, 2^20342309112 is an apocalyptic number.

It is an amenable number.

20342309112 is an abundant number, since it is smaller than the sum of its proper divisors (39138138888).

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

20342309112 is a wasteful number, since it uses less digits than its factorization.

20342309112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4956737 (or 4956727 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The spelling of 20342309112 in words is "twenty billion, three hundred forty-two million, three hundred nine thousand, one hundred twelve".