1111210000123 has 4 divisors (see below), whose sum is σ = 1111212280360. Its totient is φ = 1111207719888.

The previous prime is 1111210000111. The next prime is 1111210000127. The reversal of 1111210000123 is 3210000121111.

It is a happy number.

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 1111210000123 - 2³³ = 1102620065531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111210000127) 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, 81465 + ... + 1493002.

It is an arithmetic number, because the mean of its divisors is an integer number (277803070090).

Almost surely, 2^{1111210000123} is an apocalyptic number.

1111210000123 is a deficient number, since it is larger than the sum of its proper divisors (2280237).

1111210000123 is an equidigital number, since it uses as much as digits as its factorization.

1111210000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280236.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1111210000123 its reverse (3210000121111), we get a palindrome (4321210121234).

The spelling of 1111210000123 in words is "one trillion, one hundred eleven billion, two hundred ten million, one hundred twenty-three", and thus it is an aban number.