10010121923 has 2 divisors, whose sum is σ = 10010121924. Its totient is φ = 10010121922.

The previous prime is 10010121911. The next prime is 10010121973. The reversal of 10010121923 is 32912101001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10010121923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10010121895 and 10010121904.

It is not a weakly prime, because it can be changed into another prime (10010121973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005060961 + 5005060962.

It is an arithmetic number, because the mean of its divisors is an integer number (5005060962).

Almost surely, 2^10010121923 is an apocalyptic number.

10010121923 is a deficient number, since it is larger than the sum of its proper divisors (1).

10010121923 is an equidigital number, since it uses as much as digits as its factorization.

10010121923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 10010121923 its reverse (32912101001), we get a palindrome (42922222924).

The spelling of 10010121923 in words is "ten billion, ten million, one hundred twenty-one thousand, nine hundred twenty-three".