10111202123 has 4 divisors (see below), whose sum is σ = 11030402328. Its totient is φ = 9192001920.

The previous prime is 10111202111. The next prime is 10111202137. The reversal of 10111202123 is 32120211101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32120211101 = 11 ⋅2920019191.

It is a cyclic number.

It is not a de Polignac number, because 10111202123 - 2⁴ = 10111202107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10111202098 and 10111202107.

It is not an unprimeable number, because it can be changed into a prime (10111202323) 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, 459600086 + ... + 459600107.

It is an arithmetic number, because the mean of its divisors is an integer number (2757600582).

Almost surely, 2^10111202123 is an apocalyptic number.

10111202123 is a deficient number, since it is larger than the sum of its proper divisors (919200205).

10111202123 is an equidigital number, since it uses as much as digits as its factorization.

10111202123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919200204.

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

Adding to 10111202123 its reverse (32120211101), we get a palindrome (42231413224).

The spelling of 10111202123 in words is "ten billion, one hundred eleven million, two hundred two thousand, one hundred twenty-three".