1423121131 has 8 divisors (see below), whose sum is σ = 1455879744. Its totient is φ = 1390465920.

The previous prime is 1423121099. The next prime is 1423121137. The reversal of 1423121131 is 1311213241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1423121131 - 2⁵ = 1423121099 is a prime.

It is a super-2 number, since 2×1423121131² = 4050547506997438322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1423121099 and 1423121108.

It is not an unprimeable number, because it can be changed into a prime (1423121137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2341 + ... + 53401.

It is an arithmetic number, because the mean of its divisors is an integer number (181984968).

Almost surely, 2^1423121131 is an apocalyptic number.

1423121131 is a deficient number, since it is larger than the sum of its proper divisors (32758613).

1423121131 is an equidigital number, since it uses as much as digits as its factorization.

1423121131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51701.

The product of its digits is 144, while the sum is 19.

The square root of 1423121131 is about 37724.2777399382. The cubic root of 1423121131 is about 1124.8137649909.

Adding to 1423121131 its reverse (1311213241), we get a palindrome (2734334372).

The spelling of 1423121131 in words is "one billion, four hundred twenty-three million, one hundred twenty-one thousand, one hundred thirty-one".