105121317143431 has 2 divisors, whose sum is σ = 105121317143432. Its totient is φ = 105121317143430.

The previous prime is 105121317143371. The next prime is 105121317143443. The reversal of 105121317143431 is 134341713121501.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105121317143431 is a prime.

It is a super-2 number, since 2×105121317143431² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105191317143431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52560658571715 + 52560658571716.

It is an arithmetic number, because the mean of its divisors is an integer number (52560658571716).

Almost surely, 2^{105121317143431} is an apocalyptic number.

105121317143431 is a deficient number, since it is larger than the sum of its proper divisors (1).

105121317143431 is an equidigital number, since it uses as much as digits as its factorization.

105121317143431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 105121317143431 in words is "one hundred five trillion, one hundred twenty-one billion, three hundred seventeen million, one hundred forty-three thousand, four hundred thirty-one".