1111010000121 has 40 divisors (see below), whose sum is σ = 1943013012864. Its totient is φ = 619378384320.

The previous prime is 1111010000071. The next prime is 1111010000129. The reversal of 1111010000121 is 1210000101111.

It is not a de Polignac number, because 1111010000121 - 2⁶ = 1111010000057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1111010000129) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23872525 + ... + 23919018.

Almost surely, 2^{1111010000121} is an apocalyptic number.

It is an amenable number.

1111010000121 is a deficient number, since it is larger than the sum of its proper divisors (832003012743).

1111010000121 is an equidigital number, since it uses as much as digits as its factorization.

1111010000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47791603 (or 47791594 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 1111010000121 its reverse (1210000101111), we get a palindrome (2321010101232).

The spelling of 1111010000121 in words is "one trillion, one hundred eleven billion, ten million, one hundred twenty-one", and thus it is an aban number.