1113123220501 has 4 divisors (see below), whose sum is σ = 1113169487904. Its totient is φ = 1113076953100.

The previous prime is 1113123220487. The next prime is 1113123220511. The reversal of 1113123220501 is 1050223213111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1113123220501 - 2²⁵ = 1113089666069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113123220511) 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, 23097595 + ... + 23145736.

It is an arithmetic number, because the mean of its divisors is an integer number (278292371976).

Almost surely, 2^{1113123220501} is an apocalyptic number.

It is an amenable number.

1113123220501 is a deficient number, since it is larger than the sum of its proper divisors (46267403).

1113123220501 is an equidigital number, since it uses as much as digits as its factorization.

1113123220501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46267402.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 1113123220501 its reverse (1050223213111), we get a palindrome (2163346433612).

The spelling of 1113123220501 in words is "one trillion, one hundred thirteen billion, one hundred twenty-three million, two hundred twenty thousand, five hundred one".