1111012010123 has 4 divisors (see below), whose sum is σ = 1111034374320. Its totient is φ = 1110989645928.

The previous prime is 1111012010117. The next prime is 1111012010153. The reversal of 1111012010123 is 3210102101111.

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 1111012010123 - 2¹⁰ = 1111012009099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111012010098 and 1111012010107.

It is not an unprimeable number, because it can be changed into a prime (1111012010153) 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, 11107415 + ... + 11206992.

It is an arithmetic number, because the mean of its divisors is an integer number (277758593580).

Almost surely, 2^{1111012010123} is an apocalyptic number.

1111012010123 is a deficient number, since it is larger than the sum of its proper divisors (22364197).

1111012010123 is an equidigital number, since it uses as much as digits as its factorization.

1111012010123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22364196.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1111012010123 its reverse (3210102101111), we get a palindrome (4321114111234).

The spelling of 1111012010123 in words is "one trillion, one hundred eleven billion, twelve million, ten thousand, one hundred twenty-three".