11213432031 has 8 divisors (see below), whose sum is σ = 14952541360. Its totient is φ = 7474972032.

The previous prime is 11213432011. The next prime is 11213432039. The reversal of 11213432031 is 13023431211.

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

It is not a de Polignac number, because 11213432031 - 2¹⁰ = 11213431007 is a prime.

It is a super-2 number, since 2×11213432031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11213431989 and 11213432007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213432039) 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, 120496 + ... + 192213.

It is an arithmetic number, because the mean of its divisors is an integer number (1869067670).

Almost surely, 2^11213432031 is an apocalyptic number.

11213432031 is a deficient number, since it is larger than the sum of its proper divisors (3739109329).

11213432031 is a wasteful number, since it uses less digits than its factorization.

11213432031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324665.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 11213432031 its reverse (13023431211), we get a palindrome (24236863242).

The spelling of 11213432031 in words is "eleven billion, two hundred thirteen million, four hundred thirty-two thousand, thirty-one".