1900119101 has 2 divisors, whose sum is σ = 1900119102. Its totient is φ = 1900119100.

The previous prime is 1900119097. The next prime is 1900119103. The reversal of 1900119101 is 1019110091.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1844616601 + 55502500 = 42949^2 + 7450^2 .

It is an emirp because it is prime and its reverse (1019110091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1900119101 - 2² = 1900119097 is a prime.

It is a super-2 number, since 2×1900119101² = 7220905195970096402, which contains 22 as substring.

Together with 1900119103, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1900119103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 950059550 + 950059551.

It is an arithmetic number, because the mean of its divisors is an integer number (950059551).

Almost surely, 2^1900119101 is an apocalyptic number.

It is an amenable number.

1900119101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1900119101 is an equidigital number, since it uses as much as digits as its factorization.

1900119101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81, while the sum is 23.

The square root of 1900119101 is about 43590.3555961637. The cubic root of 1900119101 is about 1238.5882087407.

Adding to 1900119101 its reverse (1019110091), we get a palindrome (2919229192).

The spelling of 1900119101 in words is "one billion, nine hundred million, one hundred nineteen thousand, one hundred one".