1120231211123 has 4 divisors (see below), whose sum is σ = 1120420349448. Its totient is φ = 1120042072800.

The previous prime is 1120231211119. The next prime is 1120231211153. The reversal of 1120231211123 is 3211121320211.

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 1120231211123 - 2² = 1120231211119 is a prime.

It is a super-2 number, since 2×1120231211123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120231211095 and 1120231211104.

It is not an unprimeable number, because it can be changed into a prime (1120231211153) 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, 94560278 + ... + 94572123.

It is an arithmetic number, because the mean of its divisors is an integer number (280105087362).

Almost surely, 2^{1120231211123} is an apocalyptic number.

1120231211123 is a deficient number, since it is larger than the sum of its proper divisors (189138325).

1120231211123 is an equidigital number, since it uses as much as digits as its factorization.

1120231211123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189138324.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1120231211123 its reverse (3211121320211), we get a palindrome (4331352531334).

The spelling of 1120231211123 in words is "one trillion, one hundred twenty billion, two hundred thirty-one million, two hundred eleven thousand, one hundred twenty-three".