1423431051 has 32 divisors (see below), whose sum is σ = 2185344000. Its totient is φ = 807304320.

The previous prime is 1423431043. The next prime is 1423431101. The reversal of 1423431051 is 1501343241.

It is a happy number.

It is not a de Polignac number, because 1423431051 - 2³ = 1423431043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1423431001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2630841 + ... + 2631381.

It is an arithmetic number, because the mean of its divisors is an integer number (68292000).

Almost surely, 2^1423431051 is an apocalyptic number.

1423431051 is a deficient number, since it is larger than the sum of its proper divisors (761912949).

1423431051 is a wasteful number, since it uses less digits than its factorization.

1423431051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1423431051 is about 37728.3852159087. The cubic root of 1423431051 is about 1124.8954111164.

Adding to 1423431051 its reverse (1501343241), we get a palindrome (2924774292).

The spelling of 1423431051 in words is "one billion, four hundred twenty-three million, four hundred thirty-one thousand, fifty-one".