20346142100 has 18 divisors (see below), whose sum is σ = 44151128574. Its totient is φ = 8138456800.

The previous prime is 20346142099. The next prime is 20346142139. The reversal of 20346142100 is 124164302.

It can be written as a sum of positive squares in 3 ways, for example, as 42172036 + 20303970064 = 6494^2 + 142492^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101730611 + ... + 101730810.

Almost surely, 2^20346142100 is an apocalyptic number.

20346142100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20346142100 is an abundant number, since it is smaller than the sum of its proper divisors (23804986474).

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

20346142100 is a wasteful number, since it uses less digits than its factorization.

20346142100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203461435 (or 203461428 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The spelling of 20346142100 in words is "twenty billion, three hundred forty-six million, one hundred forty-two thousand, one hundred".