291103050431 has 2 divisors, whose sum is σ = 291103050432. Its totient is φ = 291103050430.

The previous prime is 291103050397. The next prime is 291103050451. The reversal of 291103050431 is 134050301192.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 291103050431 - 2¹⁰ = 291103049407 is a prime.

It is a super-2 number, since 2×291103050431² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 291103050394 and 291103050403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (291103050451) 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 as a sum of consecutive naturals, namely, 145551525215 + 145551525216.

It is an arithmetic number, because the mean of its divisors is an integer number (145551525216).

Almost surely, 2^291103050431 is an apocalyptic number.

291103050431 is a deficient number, since it is larger than the sum of its proper divisors (1).

291103050431 is an equidigital number, since it uses as much as digits as its factorization.

291103050431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The spelling of 291103050431 in words is "two hundred ninety-one billion, one hundred three million, fifty thousand, four hundred thirty-one".