1697012123 has 2 divisors, whose sum is σ = 1697012124. Its totient is φ = 1697012122.

The previous prime is 1697012089. The next prime is 1697012143. The reversal of 1697012123 is 3212107961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1697012123 - 2¹⁸ = 1696749979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1697012123.

It is not a weakly prime, because it can be changed into another prime (1697012143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 848506061 + 848506062.

It is an arithmetic number, because the mean of its divisors is an integer number (848506062).

Almost surely, 2^1697012123 is an apocalyptic number.

1697012123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1697012123 is an equidigital number, since it uses as much as digits as its factorization.

1697012123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 1697012123 is about 41194.8069906876. The cubic root of 1697012123 is about 1192.7835699311.

The spelling of 1697012123 in words is "one billion, six hundred ninety-seven million, twelve thousand, one hundred twenty-three".