11542303431 has 12 divisors (see below), whose sum is σ = 16685864208. Its totient is φ = 7688569824.

The previous prime is 11542303397. The next prime is 11542303469. The reversal of 11542303431 is 13430324511.

It is a happy number.

It is not a de Polignac number, because 11542303431 - 2¹⁰ = 11542302407 is a prime.

It is a super-2 number, since 2×11542303431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11542303395 and 11542303404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11542307431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 513310 + ... + 535323.

It is an arithmetic number, because the mean of its divisors is an integer number (1390488684).

Almost surely, 2^11542303431 is an apocalyptic number.

11542303431 is a deficient number, since it is larger than the sum of its proper divisors (5143560777).

11542303431 is a wasteful number, since it uses less digits than its factorization.

11542303431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049862 (or 1049859 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 11542303431 its reverse (13430324511), we get a palindrome (24972627942).

The spelling of 11542303431 in words is "eleven billion, five hundred forty-two million, three hundred three thousand, four hundred thirty-one".