10121030023 has 4 divisors (see below), whose sum is σ = 10899570808. Its totient is φ = 9342489240.

The previous prime is 10121029973. The next prime is 10121030027. The reversal of 10121030023 is 32003012101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10121030023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 778540771 = 10121030023 / (1 + 0 + 1 + 2 + 1 + 0 + 3 + 0 + 0 + 2 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10121029985 and 10121030012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121030027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389270373 + ... + 389270398.

It is an arithmetic number, because the mean of its divisors is an integer number (2724892702).

Almost surely, 2^10121030023 is an apocalyptic number.

10121030023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10121030023 is a deficient number, since it is larger than the sum of its proper divisors (778540785).

10121030023 is an equidigital number, since it uses as much as digits as its factorization.

10121030023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778540784.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 10121030023 its reverse (32003012101), we get a palindrome (42124042124).

The spelling of 10121030023 in words is "ten billion, one hundred twenty-one million, thirty thousand, twenty-three".