142611109919 has 2 divisors, whose sum is σ = 142611109920. Its totient is φ = 142611109918.

The previous prime is 142611109913. The next prime is 142611109933. The reversal of 142611109919 is 919901116241.

It is a weak prime.

It is an emirp because it is prime and its reverse (919901116241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142611109919 - 2¹² = 142611105823 is a prime.

It is a super-2 number, since 2×142611109919² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142611109919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142611109913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71305554959 + 71305554960.

It is an arithmetic number, because the mean of its divisors is an integer number (71305554960).

Almost surely, 2^142611109919 is an apocalyptic number.

142611109919 is a deficient number, since it is larger than the sum of its proper divisors (1).

142611109919 is an equidigital number, since it uses as much as digits as its factorization.

142611109919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 44.

The spelling of 142611109919 in words is "one hundred forty-two billion, six hundred eleven million, one hundred nine thousand, nine hundred nineteen".