20102344402 has 32 divisors (see below), whose sum is σ = 36289440000. Its totient is φ = 8165095488.

The previous prime is 20102344363. The next prime is 20102344411. The reversal of 20102344402 is 20444320102.

It is a happy 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, 251277 + ... + 321472.

It is an arithmetic number, because the mean of its divisors is an integer number (1134045000).

Almost surely, 2^20102344402 is an apocalyptic number.

20102344402 is a deficient number, since it is larger than the sum of its proper divisors (16187095598).

20102344402 is a wasteful number, since it uses less digits than its factorization.

20102344402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572890.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 20102344402 its reverse (20444320102), we get a palindrome (40546664504).

The spelling of 20102344402 in words is "twenty billion, one hundred two million, three hundred forty-four thousand, four hundred two".