1132420123 has 4 divisors (see below), whose sum is σ = 1160040168. Its totient is φ = 1104800080.

The previous prime is 1132420063. The next prime is 1132420139. The reversal of 1132420123 is 3210242311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3210242311 = 17 ⋅188837783.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1132420123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1132420123.

It is not an unprimeable number, because it can be changed into a prime (1132426123) 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, 13809961 + ... + 13810042.

It is an arithmetic number, because the mean of its divisors is an integer number (290010042).

Almost surely, 2^1132420123 is an apocalyptic number.

1132420123 is a deficient number, since it is larger than the sum of its proper divisors (27620045).

1132420123 is an equidigital number, since it uses as much as digits as its factorization.

1132420123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27620044.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1132420123 is about 33651.4505333723. The cubic root of 1132420123 is about 1042.3234919803.

Adding to 1132420123 its reverse (3210242311), we get a palindrome (4342662434).

The spelling of 1132420123 in words is "one billion, one hundred thirty-two million, four hundred twenty thousand, one hundred twenty-three".