10200012010123 has 4 divisors (see below), whose sum is σ = 10984628318608. Its totient is φ = 9415395701640.

The previous prime is 10200012010037. The next prime is 10200012010189. The reversal of 10200012010123 is 32101021000201.

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-10200012010123 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: 784616308471 = 10200012010123 / (1 + 0 + 2 + 0 + 0 + 0 + 1 + 2 + 0 + 1 + 0 + 1 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10200015010123) 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, 392308154223 + ... + 392308154248.

It is an arithmetic number, because the mean of its divisors is an integer number (2746157079652).

Almost surely, 2^{10200012010123} is an apocalyptic number.

10200012010123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10200012010123 is a deficient number, since it is larger than the sum of its proper divisors (784616308485).

10200012010123 is an equidigital number, since it uses as much as digits as its factorization.

10200012010123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784616308484.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10200012010123 its reverse (32101021000201), we get a palindrome (42301033010324).

The spelling of 10200012010123 in words is "ten trillion, two hundred billion, twelve million, ten thousand, one hundred twenty-three".