105519277931 has 2 divisors, whose sum is σ = 105519277932. Its totient is φ = 105519277930.

The previous prime is 105519277909. The next prime is 105519277957. The reversal of 105519277931 is 139772915501.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105519277931 - 2⁶ = 105519277867 is a prime.

It is a super-2 number, since 2×105519277931² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 105519277931.

It is not a weakly prime, because it can be changed into another prime (105519277991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52759638965 + 52759638966.

It is an arithmetic number, because the mean of its divisors is an integer number (52759638966).

Almost surely, 2^105519277931 is an apocalyptic number.

105519277931 is a deficient number, since it is larger than the sum of its proper divisors (1).

105519277931 is an equidigital number, since it uses as much as digits as its factorization.

105519277931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 595350, while the sum is 50.

The spelling of 105519277931 in words is "one hundred five billion, five hundred nineteen million, two hundred seventy-seven thousand, nine hundred thirty-one".