10123231997 has 2 divisors, whose sum is σ = 10123231998. Its totient is φ = 10123231996.

The previous prime is 10123231969. The next prime is 10123232023. The reversal of 10123231997 is 79913232101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9021390361 + 1101841636 = 94981^2 + 33194^2 .

It is an emirp because it is prime and its reverse (79913232101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10123231997 - 2¹⁶ = 10123166461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10123231997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10123231907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061615998 + 5061615999.

It is an arithmetic number, because the mean of its divisors is an integer number (5061615999).

Almost surely, 2^10123231997 is an apocalyptic number.

It is an amenable number.

10123231997 is a deficient number, since it is larger than the sum of its proper divisors (1).

10123231997 is an equidigital number, since it uses as much as digits as its factorization.

10123231997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 38.

The spelling of 10123231997 in words is "ten billion, one hundred twenty-three million, two hundred thirty-one thousand, nine hundred ninety-seven".