20253133234 has 4 divisors (see below), whose sum is σ = 30379699854. Its totient is φ = 10126566616.

The previous prime is 20253133211. The next prime is 20253133247. The reversal of 20253133234 is 43233135202.

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., 11141858025 + 9111275209 = 105555^2 + 95453^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5063283307 + ... + 5063283310.

Almost surely, 2^20253133234 is an apocalyptic number.

20253133234 is a deficient number, since it is larger than the sum of its proper divisors (10126566620).

20253133234 is a wasteful number, since it uses less digits than its factorization.

20253133234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10126566619.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 20253133234 its reverse (43233135202), we get a palindrome (63486268436).

The spelling of 20253133234 in words is "twenty billion, two hundred fifty-three million, one hundred thirty-three thousand, two hundred thirty-four".