2103372121 has 2 divisors, whose sum is σ = 2103372122. Its totient is φ = 2103372120.

The previous prime is 2103372109. The next prime is 2103372157. The reversal of 2103372121 is 1212733012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1258830400 + 844541721 = 35480^2 + 29061^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103372121 - 2⁹ = 2103371609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2103372092 and 2103372101.

It is not a weakly prime, because it can be changed into another prime (2103372101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051686060 + 1051686061.

It is an arithmetic number, because the mean of its divisors is an integer number (1051686061).

Almost surely, 2^2103372121 is an apocalyptic number.

It is an amenable number.

2103372121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103372121 is an equidigital number, since it uses as much as digits as its factorization.

2103372121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 2103372121 is about 45862.5350476835. The cubic root of 2103372121 is about 1281.2642377763.

The spelling of 2103372121 in words is "two billion, one hundred three million, three hundred seventy-two thousand, one hundred twenty-one".