11361145431 has 16 divisors (see below), whose sum is σ = 15274879488. Its totient is φ = 7510838400.

The previous prime is 11361145427. The next prime is 11361145451. The reversal of 11361145431 is 13454116311.

11361145431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11361145431 - 2² = 11361145427 is a prime.

It is a super-2 number, since 2×11361145431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11361145451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 574671 + ... + 594111.

It is an arithmetic number, because the mean of its divisors is an integer number (954679968).

Almost surely, 2^11361145431 is an apocalyptic number.

11361145431 is a deficient number, since it is larger than the sum of its proper divisors (3913734057).

11361145431 is a wasteful number, since it uses less digits than its factorization.

11361145431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21062.

The product of its digits is 4320, while the sum is 30.

The spelling of 11361145431 in words is "eleven billion, three hundred sixty-one million, one hundred forty-five thousand, four hundred thirty-one".