20134401204 has 48 divisors (see below), whose sum is σ = 49037345280. Its totient is φ = 6417771360.

The previous prime is 20134401139. The next prime is 20134401247. The reversal of 20134401204 is 40210443102.

It is a super-2 number, since 2×20134401204² (a number of 21 digits) contains 22 as substring.

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, 1155799 + ... + 1173089.

It is an arithmetic number, because the mean of its divisors is an integer number (1021611360).

Almost surely, 2^20134401204 is an apocalyptic number.

It is an amenable number.

20134401204 is an abundant number, since it is smaller than the sum of its proper divisors (28902944076).

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

20134401204 is a wasteful number, since it uses less digits than its factorization.

20134401204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21540 (or 21538 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20134401204 its reverse (40210443102), we get a palindrome (60344844306).

The spelling of 20134401204 in words is "twenty billion, one hundred thirty-four million, four hundred one thousand, two hundred four".