20403232233432 has 32 divisors (see below), whose sum is σ = 51022793246400. Its totient is φ = 6799115722784.

The previous prime is 20403232233257. The next prime is 20403232233451. The reversal of 20403232233432 is 23433223230402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20403232233393 and 20403232233402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122520582 + ... + 122686997.

It is an arithmetic number, because the mean of its divisors is an integer number (1594462288950).

Almost surely, 2^{20403232233432} is an apocalyptic number.

It is an amenable number.

20403232233432 is an abundant number, since it is smaller than the sum of its proper divisors (30619561012968).

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

20403232233432 is a wasteful number, since it uses less digits than its factorization.

20403232233432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245211055 (or 245211051 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 33.

Adding to 20403232233432 its reverse (23433223230402), we get a palindrome (43836455463834).

The spelling of 20403232233432 in words is "twenty trillion, four hundred three billion, two hundred thirty-two million, two hundred thirty-three thousand, four hundred thirty-two".