20200102331 has 4 divisors (see below), whose sum is σ = 20201742600. Its totient is φ = 20198462064.

The previous prime is 20200102327. The next prime is 20200102361. The reversal of 20200102331 is 13320100202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20200102331 - 2² = 20200102327 is a prime.

It is a super-2 number, since 2×20200102331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20200102361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801521 + ... + 826338.

It is an arithmetic number, because the mean of its divisors is an integer number (5050435650).

Almost surely, 2^20200102331 is an apocalyptic number.

20200102331 is a deficient number, since it is larger than the sum of its proper divisors (1640269).

20200102331 is a wasteful number, since it uses less digits than its factorization.

20200102331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640268.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20200102331 its reverse (13320100202), we get a palindrome (33520202533).

The spelling of 20200102331 in words is "twenty billion, two hundred million, one hundred two thousand, three hundred thirty-one".