2251153115431 has 4 divisors (see below), whose sum is σ = 2455803398664. Its totient is φ = 2046502832200.

The previous prime is 2251153115417. The next prime is 2251153115443. The reversal of 2251153115431 is 1345113511522.

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

It is a cyclic number.

It is not a de Polignac number, because 2251153115431 - 2¹⁹ = 2251152591143 is a prime.

It is a super-2 number, since 2×2251153115431² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251153115401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102325141600 + ... + 102325141621.

It is an arithmetic number, because the mean of its divisors is an integer number (613950849666).

Almost surely, 2^{2251153115431} is an apocalyptic number.

2251153115431 is a deficient number, since it is larger than the sum of its proper divisors (204650283233).

2251153115431 is a wasteful number, since it uses less digits than its factorization.

2251153115431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204650283232.

The product of its digits is 18000, while the sum is 34.

Adding to 2251153115431 its reverse (1345113511522), we get a palindrome (3596266626953).

The spelling of 2251153115431 in words is "two trillion, two hundred fifty-one billion, one hundred fifty-three million, one hundred fifteen thousand, four hundred thirty-one".