20440142119 has 2 divisors, whose sum is σ = 20440142120. Its totient is φ = 20440142118.

The previous prime is 20440142081. The next prime is 20440142153. The reversal of 20440142119 is 91124104402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20440142119 - 2²¹ = 20438044967 is a prime.

It is a super-2 number, since 2×20440142119² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20440142189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10220071059 + 10220071060.

It is an arithmetic number, because the mean of its divisors is an integer number (10220071060).

Almost surely, 2^20440142119 is an apocalyptic number.

20440142119 is a deficient number, since it is larger than the sum of its proper divisors (1).

20440142119 is an equidigital number, since it uses as much as digits as its factorization.

20440142119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 20440142119 in words is "twenty billion, four hundred forty million, one hundred forty-two thousand, one hundred nineteen".