20312122002 has 32 divisors (see below), whose sum is σ = 44401457664. Its totient is φ = 6166867200.

The previous prime is 20312122001. The next prime is 20312122003. The reversal of 20312122002 is 20022121302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20312122001) and next prime (20312122003).

It is not an unprimeable number, because it can be changed into a prime (20312122001) 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, 3208749 + ... + 3215072.

It is an arithmetic number, because the mean of its divisors is an integer number (1387545552).

Almost surely, 2^20312122002 is an apocalyptic number.

20312122002 is an abundant number, since it is smaller than the sum of its proper divisors (24089335662).

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

20312122002 is a wasteful number, since it uses less digits than its factorization.

20312122002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6423874.

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

Adding to 20312122002 its reverse (20022121302), we get a palindrome (40334243304).

The spelling of 20312122002 in words is "twenty billion, three hundred twelve million, one hundred twenty-two thousand, two".