20401322332 has 12 divisors (see below), whose sum is σ = 36854001856. Its totient is φ = 9871607520.

The previous prime is 20401322309. The next prime is 20401322407. The reversal of 20401322332 is 23322310402.

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, 82263273 + ... + 82263520.

Almost surely, 2^20401322332 is an apocalyptic number.

It is an amenable number.

20401322332 is a deficient number, since it is larger than the sum of its proper divisors (16452679524).

20401322332 is a wasteful number, since it uses less digits than its factorization.

20401322332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164526828 (or 164526826 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20401322332 its reverse (23322310402), we get a palindrome (43723632734).

The spelling of 20401322332 in words is "twenty billion, four hundred one million, three hundred twenty-two thousand, three hundred thirty-two".