11842109382431 has 2 divisors, whose sum is σ = 11842109382432. Its totient is φ = 11842109382430.

The previous prime is 11842109382421. The next prime is 11842109382487. The reversal of 11842109382431 is 13428390124811.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11842109382431 is a prime.

It is a super-2 number, since 2×11842109382431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11842109382421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5921054691215 + 5921054691216.

It is an arithmetic number, because the mean of its divisors is an integer number (5921054691216).

Almost surely, 2^{11842109382431} is an apocalyptic number.

11842109382431 is a deficient number, since it is larger than the sum of its proper divisors (1).

11842109382431 is an equidigital number, since it uses as much as digits as its factorization.

11842109382431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 47.

The spelling of 11842109382431 in words is "eleven trillion, eight hundred forty-two billion, one hundred nine million, three hundred eighty-two thousand, four hundred thirty-one".