20432230031002 has 4 divisors (see below), whose sum is σ = 30648345046506. Its totient is φ = 10216115015500.

The previous prime is 20432230030999. The next prime is 20432230031023. The reversal of 20432230031002 is 20013003223402.

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., 20388665575161 + 43564455841 = 4515381^2 + 208721^2 .

It is a super-2 number, since 2×20432230031002² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5108057507749 + ... + 5108057507752.

Almost surely, 2^{20432230031002} is an apocalyptic number.

20432230031002 is a deficient number, since it is larger than the sum of its proper divisors (10216115015504).

20432230031002 is a wasteful number, since it uses less digits than its factorization.

20432230031002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10216115015503.

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

Adding to 20432230031002 its reverse (20013003223402), we get a palindrome (40445233254404).

The spelling of 20432230031002 in words is "twenty trillion, four hundred thirty-two billion, two hundred thirty million, thirty-one thousand, two".