20032331432 has 8 divisors (see below), whose sum is σ = 37560621450. Its totient is φ = 10016165712.

The previous prime is 20032331393. The next prime is 20032331437. The reversal of 20032331432 is 23413323002.

It can be written as a sum of positive squares in only one way, i.e., 13457392036 + 6574939396 = 116006^2 + 81086^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 20032331398 and 20032331407.

It is not an unprimeable number, because it can be changed into a prime (20032331437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252020707 + ... + 1252020722.

Almost surely, 2^20032331432 is an apocalyptic number.

It is an amenable number.

20032331432 is a deficient number, since it is larger than the sum of its proper divisors (17528290018).

20032331432 is a wasteful number, since it uses less digits than its factorization.

20032331432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504041435 (or 2504041431 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 20032331432 its reverse (23413323002), we get a palindrome (43445654434).

The spelling of 20032331432 in words is "twenty billion, thirty-two million, three hundred thirty-one thousand, four hundred thirty-two".