103119871949 has 2 divisors, whose sum is σ = 103119871950. Its totient is φ = 103119871948.

The previous prime is 103119871919. The next prime is 103119871993. The reversal of 103119871949 is 949178911301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96127902025 + 6991969924 = 310045^2 + 83618^2 .

It is a cyclic number.

It is not a de Polignac number, because 103119871949 - 2¹² = 103119867853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103119871949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103119871919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51559935974 + 51559935975.

It is an arithmetic number, because the mean of its divisors is an integer number (51559935975).

Almost surely, 2^103119871949 is an apocalyptic number.

It is an amenable number.

103119871949 is a deficient number, since it is larger than the sum of its proper divisors (1).

103119871949 is an equidigital number, since it uses as much as digits as its factorization.

103119871949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 53.

The spelling of 103119871949 in words is "one hundred three billion, one hundred nineteen million, eight hundred seventy-one thousand, nine hundred forty-nine".