23421432019 has 2 divisors, whose sum is σ = 23421432020. Its totient is φ = 23421432018.

The previous prime is 23421431963. The next prime is 23421432061. The reversal of 23421432019 is 91023412432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23421432019 - 2¹¹ = 23421429971 is a prime.

It is a super-2 number, since 2×23421432019² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23421432079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11710716009 + 11710716010.

It is an arithmetic number, because the mean of its divisors is an integer number (11710716010).

Almost surely, 2^23421432019 is an apocalyptic number.

23421432019 is a deficient number, since it is larger than the sum of its proper divisors (1).

23421432019 is an equidigital number, since it uses as much as digits as its factorization.

23421432019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 23421432019 in words is "twenty-three billion, four hundred twenty-one million, four hundred thirty-two thousand, nineteen".