20115331322 has 4 divisors (see below), whose sum is σ = 30172996986. Its totient is φ = 10057665660.

The previous prime is 20115331319. The next prime is 20115331339. The reversal of 20115331322 is 22313351102.

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

It can be written as a sum of positive squares in only one way, i.e., 18447344041 + 1667987281 = 135821^2 + 40841^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5028832829 + ... + 5028832832.

Almost surely, 2^20115331322 is an apocalyptic number.

20115331322 is a deficient number, since it is larger than the sum of its proper divisors (10057665664).

20115331322 is a wasteful number, since it uses less digits than its factorization.

20115331322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10057665663.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 20115331322 its reverse (22313351102), we get a palindrome (42428682424).

The spelling of 20115331322 in words is "twenty billion, one hundred fifteen million, three hundred thirty-one thousand, three hundred twenty-two".