11630831251 has 16 divisors (see below), whose sum is σ = 12985650720. Its totient is φ = 10348058880.

The previous prime is 11630831249. The next prime is 11630831281. The reversal of 11630831251 is 15213803611.

It is not a de Polignac number, because 11630831251 - 2¹ = 11630831249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11630831281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87216 + ... + 175693.

It is an arithmetic number, because the mean of its divisors is an integer number (811603170).

Almost surely, 2^11630831251 is an apocalyptic number.

11630831251 is a deficient number, since it is larger than the sum of its proper divisors (1354819469).

11630831251 is a wasteful number, since it uses less digits than its factorization.

11630831251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263046.

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 11630831251 in words is "eleven billion, six hundred thirty million, eight hundred thirty-one thousand, two hundred fifty-one".