20101344402 has 16 divisors (see below), whose sum is σ = 40270491360. Its totient is φ = 6689147712.

The previous prime is 20101344401. The next prime is 20101344407. The reversal of 20101344402 is 20444310102.

It is not an unprimeable number, because it can be changed into a prime (20101344401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2821252 + ... + 2828367.

It is an arithmetic number, because the mean of its divisors is an integer number (2516905710).

Almost surely, 2^20101344402 is an apocalyptic number.

20101344402 is an abundant number, since it is smaller than the sum of its proper divisors (20169146958).

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

20101344402 is a wasteful number, since it uses less digits than its factorization.

20101344402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5650217.

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

Adding to 20101344402 its reverse (20444310102), we get a palindrome (40545654504).

The spelling of 20101344402 in words is "twenty billion, one hundred one million, three hundred forty-four thousand, four hundred two".