2123201097 has 12 divisors (see below), whose sum is σ = 3073774704. Its totient is φ = 1412269560.

The previous prime is 2123201071. The next prime is 2123201137. The reversal of 2123201097 is 7901023212.

It is not a de Polignac number, because 2123201097 - 2¹⁰ = 2123200073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2123201097.

It is not an unprimeable number, because it can be changed into a prime (2123201897) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 262279 + ... + 270252.

It is an arithmetic number, because the mean of its divisors is an integer number (256147892).

Almost surely, 2^2123201097 is an apocalyptic number.

It is an amenable number.

2123201097 is a deficient number, since it is larger than the sum of its proper divisors (950573607).

2123201097 is a wasteful number, since it uses less digits than its factorization.

2123201097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532980 (or 532977 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 2123201097 is about 46078.2063127462. The cubic root of 2123201097 is about 1285.2779096817.

The spelling of 2123201097 in words is "two billion, one hundred twenty-three million, two hundred one thousand, ninety-seven".