11402242331 has 4 divisors (see below), whose sum is σ = 11429326464. Its totient is φ = 11375158200.

The previous prime is 11402242309. The next prime is 11402242351. The reversal of 11402242331 is 13324220411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11402242331 is a prime.

It is a super-2 number, since 2×11402242331² (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 = 11402242297 and 11402242306.

It is not an unprimeable number, because it can be changed into a prime (11402242351) 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, 13541435 + ... + 13542276.

It is an arithmetic number, because the mean of its divisors is an integer number (2857331616).

Almost surely, 2^11402242331 is an apocalyptic number.

11402242331 is a deficient number, since it is larger than the sum of its proper divisors (27084133).

11402242331 is an equidigital number, since it uses as much as digits as its factorization.

11402242331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27084132.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 11402242331 its reverse (13324220411), we get a palindrome (24726462742).

The spelling of 11402242331 in words is "eleven billion, four hundred two million, two hundred forty-two thousand, three hundred thirty-one".