20001313430 has 24 divisors (see below), whose sum is σ = 41880302208. Its totient is φ = 6857593008.

The previous prime is 20001313391. The next prime is 20001313463. The reversal of 20001313430 is 3431310002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20001313399 and 20001313408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20409014 + ... + 20409993.

It is an arithmetic number, because the mean of its divisors is an integer number (1745012592).

Almost surely, 2^20001313430 is an apocalyptic number.

20001313430 is an abundant number, since it is smaller than the sum of its proper divisors (21878988778).

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

20001313430 is a wasteful number, since it uses less digits than its factorization.

20001313430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40819028 (or 40819021 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20001313430 its reverse (3431310002), we get a palindrome (23432623432).

The spelling of 20001313430 in words is "twenty billion, one million, three hundred thirteen thousand, four hundred thirty".