1022140423 has 4 divisors (see below), whose sum is σ = 1029601440. Its totient is φ = 1014679408.

The previous prime is 1022140411. The next prime is 1022140433. The reversal of 1022140423 is 3240412201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1022140423 - 2⁵ = 1022140391 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 1022140423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022140433) 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, 3730303 + ... + 3730576.

It is an arithmetic number, because the mean of its divisors is an integer number (257400360).

Almost surely, 2^1022140423 is an apocalyptic number.

1022140423 is a deficient number, since it is larger than the sum of its proper divisors (7461017).

1022140423 is an equidigital number, since it uses as much as digits as its factorization.

1022140423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7461016.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1022140423 is about 31970.9309060590. The cubic root of 1022140423 is about 1007.3263347385.

Adding to 1022140423 its reverse (3240412201), we get a palindrome (4262552624).

The spelling of 1022140423 in words is "one billion, twenty-two million, one hundred forty thousand, four hundred twenty-three".