11312420230431 has 64 divisors (see below), whose sum is σ = 18131269132800. Its totient is φ = 6944611161600.

The previous prime is 11312420230403. The next prime is 11312420230469. The reversal of 11312420230431 is 13403202421311.

11312420230431 is a `hidden beast` number, since 1 + 1 + 3 + 1 + 2 + 420 + 230 + 4 + 3 + 1 = 666.

It is not a de Polignac number, because 11312420230431 - 2⁵ = 11312420230399 is a prime.

It is a super-2 number, since 2×11312420230431² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 11312420230395 and 11312420230404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312420280431) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4724221 + ... + 6703961.

It is an arithmetic number, because the mean of its divisors is an integer number (283301080200).

Almost surely, 2^{11312420230431} is an apocalyptic number.

11312420230431 is a deficient number, since it is larger than the sum of its proper divisors (6818848902369).

11312420230431 is a wasteful number, since it uses less digits than its factorization.

11312420230431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980037 (or 1980031 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 11312420230431 its reverse (13403202421311), we get a palindrome (24715622651742).

The spelling of 11312420230431 in words is "eleven trillion, three hundred twelve billion, four hundred twenty million, two hundred thirty thousand, four hundred thirty-one".