101121200000123 has 4 divisors (see below), whose sum is σ = 101121496081200. Its totient is φ = 101120903919048.

The previous prime is 101121200000113. The next prime is 101121200000153. The reversal of 101121200000123 is 321000002121101.

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

It is a cyclic number.

It is not a de Polignac number, because 101121200000123 - 2⁴⁴ = 83529013955707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101121200000098 and 101121200000107.

It is not an unprimeable number, because it can be changed into a prime (101121200000113) 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, 147527648 + ... + 148211501.

It is an arithmetic number, because the mean of its divisors is an integer number (25280374020300).

Almost surely, 2^{101121200000123} is an apocalyptic number.

101121200000123 is a deficient number, since it is larger than the sum of its proper divisors (296081077).

101121200000123 is an equidigital number, since it uses as much as digits as its factorization.

101121200000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296081076.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 101121200000123 its reverse (321000002121101), we get a palindrome (422121202121224).

The spelling of 101121200000123 in words is "one hundred one trillion, one hundred twenty-one billion, two hundred million, one hundred twenty-three", and thus it is an aban number.