1423121316 has 48 divisors (see below), whose sum is σ = 3406599168. Its totient is φ = 462124800.

The previous prime is 1423121311. The next prime is 1423121317. The reversal of 1423121316 is 6131213241.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1423121311) 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, 417981 + ... + 421371.

It is an arithmetic number, because the mean of its divisors is an integer number (70970816).

Almost surely, 2^1423121316 is an apocalyptic number.

It is an amenable number.

1423121316 is an abundant number, since it is smaller than the sum of its proper divisors (1983477852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1423121316 is a wasteful number, since it uses less digits than its factorization.

1423121316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292 (or 4290 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 1423121316 is about 37724.2801919400. The cubic root of 1423121316 is about 1124.8138137313.

Adding to 1423121316 its reverse (6131213241), we get a palindrome (7554334557).

The spelling of 1423121316 in words is "one billion, four hundred twenty-three million, one hundred twenty-one thousand, three hundred sixteen".