2100013397 has 2 divisors, whose sum is σ = 2100013398. Its totient is φ = 2100013396.

The previous prime is 2100013393. The next prime is 2100013423. The reversal of 2100013397 is 7933100012.

It is an a-pointer prime, because the next prime (2100013423) can be obtained adding 2100013397 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1477710481 + 622302916 = 38441^2 + 24946^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100013397 - 2² = 2100013393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100013393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050006698 + 1050006699.

It is an arithmetic number, because the mean of its divisors is an integer number (1050006699).

Almost surely, 2^2100013397 is an apocalyptic number.

It is an amenable number.

2100013397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100013397 is an equidigital number, since it uses as much as digits as its factorization.

2100013397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 2100013397 is about 45825.9031225790. The cubic root of 2100013397 is about 1280.5818881435.

The spelling of 2100013397 in words is "two billion, one hundred million, thirteen thousand, three hundred ninety-seven".