20402031201 has 16 divisors (see below), whose sum is σ = 27794929920. Its totient is φ = 13307429520.

The previous prime is 20402031187. The next prime is 20402031203. The reversal of 20402031201 is 10213020402.

It is not a de Polignac number, because 20402031201 - 2⁶ = 20402031137 is a prime.

It is a super-4 number, since 4×20402031201⁴ (a number of 42 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (20402031203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235795 + ... + 310488.

It is an arithmetic number, because the mean of its divisors is an integer number (1737183120).

Almost surely, 2^20402031201 is an apocalyptic number.

It is an amenable number.

20402031201 is a deficient number, since it is larger than the sum of its proper divisors (7392898719).

20402031201 is a wasteful number, since it uses less digits than its factorization.

20402031201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546556.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20402031201 its reverse (10213020402), we get a palindrome (30615051603).

The spelling of 20402031201 in words is "twenty billion, four hundred two million, thirty-one thousand, two hundred one".