11259051331 has 18 divisors (see below), whose sum is σ = 13032890780. Its totient is φ = 9692408880.

The previous prime is 11259051317. The next prime is 11259051337. The reversal of 11259051331 is 13315095211.

It is not a de Polignac number, because 11259051331 - 2¹¹ = 11259049283 is a prime.

It is a super-2 number, since 2×11259051331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11259051293 and 11259051302.

It is not an unprimeable number, because it can be changed into a prime (11259051337) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5086581 + ... + 5088793.

Almost surely, 2^11259051331 is an apocalyptic number.

11259051331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11259051331 is a deficient number, since it is larger than the sum of its proper divisors (1773839449).

11259051331 is an frugal number, since it uses more digits than its factorization.

11259051331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4467 (or 2243 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 31.

The spelling of 11259051331 in words is "eleven billion, two hundred fifty-nine million, fifty-one thousand, three hundred thirty-one".