20401010402 has 16 divisors (see below), whose sum is σ = 31295721600. Its totient is φ = 9971660400.

The previous prime is 20401010387. The next prime is 20401010449.

20401010402 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623252 + ... + 655167.

It is an arithmetic number, because the mean of its divisors is an integer number (1955982600).

Almost surely, 2^20401010402 is an apocalyptic number.

20401010402 is a deficient number, since it is larger than the sum of its proper divisors (10894711198).

20401010402 is a wasteful number, since it uses less digits than its factorization.

20401010402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278601.

The product of its (nonzero) digits is 64, while the sum is 14.

It can be divided in two parts, 204010 and 10402, that added together give a palindrome (214412).

The spelling of 20401010402 in words is "twenty billion, four hundred one million, ten thousand, four hundred two".