11112302131 has 4 divisors (see below), whose sum is σ = 12699773872. Its totient is φ = 9524830392.

The previous prime is 11112302101. The next prime is 11112302143. The reversal of 11112302131 is 13120321111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13120321111 = 18353 ⋅714887.

It is not a de Polignac number, because 11112302131 - 2¹³ = 11112293939 is a prime.

It is a super-2 number, since 2×11112302131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11112302101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 793735860 + ... + 793735873.

It is an arithmetic number, because the mean of its divisors is an integer number (3174943468).

Almost surely, 2^11112302131 is an apocalyptic number.

11112302131 is a deficient number, since it is larger than the sum of its proper divisors (1587471741).

11112302131 is an equidigital number, since it uses as much as digits as its factorization.

11112302131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587471740.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11112302131 its reverse (13120321111), we get a palindrome (24232623242).

The spelling of 11112302131 in words is "eleven billion, one hundred twelve million, three hundred two thousand, one hundred thirty-one".