2100003391 has 2 divisors, whose sum is σ = 2100003392. Its totient is φ = 2100003390.

The previous prime is 2100003383. The next prime is 2100003397. The reversal of 2100003391 is 1933000012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2100003391 - 2³ = 2100003383 is a prime.

It is a super-2 number, since 2×2100003391² = 8820028484422997762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100003397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050001695 + 1050001696.

It is an arithmetic number, because the mean of its divisors is an integer number (1050001696).

Almost surely, 2^2100003391 is an apocalyptic number.

2100003391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100003391 is an equidigital number, since it uses as much as digits as its factorization.

2100003391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 2100003391 is about 45825.7939483868. The cubic root of 2100003391 is about 1280.5798542639.

The spelling of 2100003391 in words is "two billion, one hundred million, three thousand, three hundred ninety-one".