20251152047134 has 4 divisors (see below), whose sum is σ = 30376728070704. Its totient is φ = 10125576023566.

The previous prime is 20251152047131. The next prime is 20251152047143. The reversal of 20251152047134 is 43174025115202.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×20251152047134² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20251152047093 and 20251152047102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20251152047131) by changing a digit.

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, 5062788011782 + ... + 5062788011785.

It is an arithmetic number, because the mean of its divisors is an integer number (7594182017676).

Almost surely, 2^{20251152047134} is an apocalyptic number.

20251152047134 is a deficient number, since it is larger than the sum of its proper divisors (10125576023570).

20251152047134 is a wasteful number, since it uses less digits than its factorization.

20251152047134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10125576023569.

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 20251152047134 in words is "twenty trillion, two hundred fifty-one billion, one hundred fifty-two million, forty-seven thousand, one hundred thirty-four".