20312122302 has 40 divisors (see below), whose sum is σ = 45530271072. Its totient is φ = 6768316800.

The previous prime is 20312122283. The next prime is 20312122307. The reversal of 20312122302 is 20322121302.

It is a super-2 number, since 2×20312122302² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312122307) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 472027 + ... + 513257.

Almost surely, 2^20312122302 is an apocalyptic number.

20312122302 is an abundant number, since it is smaller than the sum of its proper divisors (25218148770).

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

20312122302 is a wasteful number, since it uses less digits than its factorization.

20312122302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44286 (or 44277 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20312122302 its reverse (20322121302), we get a palindrome (40634243604).

The spelling of 20312122302 in words is "twenty billion, three hundred twelve million, one hundred twenty-two thousand, three hundred two".