11321410251 has 4 divisors (see below), whose sum is σ = 15095213672. Its totient is φ = 7547606832.

The previous prime is 11321410207. The next prime is 11321410259. The reversal of 11321410251 is 15201412311.

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

It is not a de Polignac number, because 11321410251 - 2⁷ = 11321410123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11321410259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1886901706 + ... + 1886901711.

It is an arithmetic number, because the mean of its divisors is an integer number (3773803418).

Almost surely, 2^11321410251 is an apocalyptic number.

11321410251 is a deficient number, since it is larger than the sum of its proper divisors (3773803421).

11321410251 is an equidigital number, since it uses as much as digits as its factorization.

11321410251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3773803420.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 11321410251 its reverse (15201412311), we get a palindrome (26522822562).

It can be divided in two parts, 11321410 and 251, that added together give a triangular number (11321661 = T₄₇₅₈).

The spelling of 11321410251 in words is "eleven billion, three hundred twenty-one million, four hundred ten thousand, two hundred fifty-one".