20322311132 has 12 divisors (see below), whose sum is σ = 35574118440. Its totient is φ = 10158277296.

The previous prime is 20322311117. The next prime is 20322311147. The reversal of 20322311132 is 23111322302.

It is an interprime number because it is at equal distance from previous prime (20322311117) and next prime (20322311147).

It is a super-2 number, since 2×20322311132² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703643 + ... + 731954.

It is an arithmetic number, because the mean of its divisors is an integer number (2964509870).

Almost surely, 2^20322311132 is an apocalyptic number.

It is an amenable number.

20322311132 is a deficient number, since it is larger than the sum of its proper divisors (15251807308).

20322311132 is a wasteful number, since it uses less digits than its factorization.

20322311132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439140 (or 1439138 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20322311132 its reverse (23111322302), we get a palindrome (43433633434).

The spelling of 20322311132 in words is "twenty billion, three hundred twenty-two million, three hundred eleven thousand, one hundred thirty-two".