1112121021023 has 16 divisors (see below), whose sum is σ = 1203684213600. Its totient is φ = 1024225637760.

The previous prime is 1112121020999. The next prime is 1112121021097. The reversal of 1112121021023 is 3201201212111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1112121021023 - 2¹⁴ = 1112121004639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112121020992 and 1112121021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112121071023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4956248 + ... + 5175773.

It is an arithmetic number, because the mean of its divisors is an integer number (75230263350).

Almost surely, 2^{1112121021023} is an apocalyptic number.

1112121021023 is a deficient number, since it is larger than the sum of its proper divisors (91563192577).

1112121021023 is a wasteful number, since it uses less digits than its factorization.

1112121021023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10132202.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1112121021023 its reverse (3201201212111), we get a palindrome (4313322233134).

The spelling of 1112121021023 in words is "one trillion, one hundred twelve billion, one hundred twenty-one million, twenty-one thousand, twenty-three".