10020000012123 has 8 divisors (see below), whose sum is σ = 14145882370128. Its totient is φ = 6287058831104.

The previous prime is 10020000012107. The next prime is 10020000012193. The reversal of 10020000012123 is 32121000002001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10020000012123 - 2⁴ = 10020000012107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10020000012099 and 10020000012108.

It is not an unprimeable number, because it can be changed into a prime (10020000012193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98235294186 + ... + 98235294287.

It is an arithmetic number, because the mean of its divisors is an integer number (1768235296266).

Almost surely, 2^{10020000012123} is an apocalyptic number.

10020000012123 is a deficient number, since it is larger than the sum of its proper divisors (4125882358005).

10020000012123 is a wasteful number, since it uses less digits than its factorization.

10020000012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196470588493.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10020000012123 its reverse (32121000002001), we get a palindrome (42141000014124).

The spelling of 10020000012123 in words is "ten trillion, twenty billion, twelve thousand, one hundred twenty-three".