2531121351 has 8 divisors (see below), whose sum is σ = 3681631104. Its totient is φ = 1534012920.

The previous prime is 2531121349. The next prime is 2531121353. The reversal of 2531121351 is 1531211352.

It is an interprime number because it is at equal distance from previous prime (2531121349) and next prime (2531121353).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2531121351 - 2¹ = 2531121349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531121353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38350291 + ... + 38350356.

It is an arithmetic number, because the mean of its divisors is an integer number (460203888).

Almost surely, 2^2531121351 is an apocalyptic number.

2531121351 is a deficient number, since it is larger than the sum of its proper divisors (1150509753).

2531121351 is a wasteful number, since it uses less digits than its factorization.

2531121351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76700661.

The product of its digits is 900, while the sum is 24.

The square root of 2531121351 is about 50310.2509534588. The cubic root of 2531121351 is about 1362.8173557641.

Subtracting from 2531121351 its reverse (1531211352), we obtain a palindrome (999909999).

The spelling of 2531121351 in words is "two billion, five hundred thirty-one million, one hundred twenty-one thousand, three hundred fifty-one".