190203447913 has 2 divisors, whose sum is σ = 190203447914. Its totient is φ = 190203447912.

The previous prime is 190203447893. The next prime is 190203447943. The reversal of 190203447913 is 319744302091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115703383104 + 74500064809 = 340152^2 + 272947^2 .

It is a cyclic number.

It is not a de Polignac number, because 190203447913 - 2²⁵ = 190169893481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 190203447913.

It is not a weakly prime, because it can be changed into another prime (190203447943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95101723956 + 95101723957.

It is an arithmetic number, because the mean of its divisors is an integer number (95101723957).

Almost surely, 2^190203447913 is an apocalyptic number.

It is an amenable number.

190203447913 is a deficient number, since it is larger than the sum of its proper divisors (1).

190203447913 is an equidigital number, since it uses as much as digits as its factorization.

190203447913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 190203447913 in words is "one hundred ninety billion, two hundred three million, four hundred forty-seven thousand, nine hundred thirteen".