11151351431 has 8 divisors (see below), whose sum is σ = 12166919184. Its totient is φ = 10136085120.

The previous prime is 11151351401. The next prime is 11151351443. The reversal of 11151351431 is 13415315111.

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

It is a cyclic number.

It is not a de Polignac number, because 11151351431 - 2²² = 11147157127 is a prime.

It is a super-2 number, since 2×11151351431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11151351431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11151351401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5801 + ... + 149453.

It is an arithmetic number, because the mean of its divisors is an integer number (1520864898).

Almost surely, 2^11151351431 is an apocalyptic number.

11151351431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11151351431 is a deficient number, since it is larger than the sum of its proper divisors (1015567753).

11151351431 is a wasteful number, since it uses less digits than its factorization.

11151351431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150721.

The product of its digits is 900, while the sum is 26.

Adding to 11151351431 its reverse (13415315111), we get a palindrome (24566666542).

The spelling of 11151351431 in words is "eleven billion, one hundred fifty-one million, three hundred fifty-one thousand, four hundred thirty-one".