1183022813491 has 2 divisors, whose sum is σ = 1183022813492. Its totient is φ = 1183022813490.

The previous prime is 1183022813459. The next prime is 1183022813501. The reversal of 1183022813491 is 1943182203811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1183022813491 - 2⁵ = 1183022813459 is a prime.

It is a super-2 number, since 2×1183022813491² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1183022817491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 591511406745 + 591511406746.

It is an arithmetic number, because the mean of its divisors is an integer number (591511406746).

Almost surely, 2^{1183022813491} is an apocalyptic number.

1183022813491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1183022813491 is an equidigital number, since it uses as much as digits as its factorization.

1183022813491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 43.

The spelling of 1183022813491 in words is "one trillion, one hundred eighty-three billion, twenty-two million, eight hundred thirteen thousand, four hundred ninety-one".