11357942381 has 4 divisors (see below), whose sum is σ = 11360886432. Its totient is φ = 11354998332.

The previous prime is 11357942339. The next prime is 11357942383. The reversal of 11357942381 is 18324975311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11357942381 - 2²⁶ = 11290833517 is a prime.

It is a super-2 number, since 2×11357942381² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11357942383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1466231 + ... + 1473956.

It is an arithmetic number, because the mean of its divisors is an integer number (2840221608).

Almost surely, 2^11357942381 is an apocalyptic number.

It is an amenable number.

11357942381 is a deficient number, since it is larger than the sum of its proper divisors (2944051).

11357942381 is an equidigital number, since it uses as much as digits as its factorization.

11357942381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2944050.

The product of its digits is 181440, while the sum is 44.

The spelling of 11357942381 in words is "eleven billion, three hundred fifty-seven million, nine hundred forty-two thousand, three hundred eighty-one".