142377114521 has 4 divisors (see below), whose sum is σ = 148567423872. Its totient is φ = 136186805172.

The previous prime is 142377114499. The next prime is 142377114637. The reversal of 142377114521 is 125411773241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 125411773241 = 271 ⋅462774071.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142377114521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142377114221) 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, 3095154641 + ... + 3095154686.

It is an arithmetic number, because the mean of its divisors is an integer number (37141855968).

Almost surely, 2^142377114521 is an apocalyptic number.

It is an amenable number.

142377114521 is a deficient number, since it is larger than the sum of its proper divisors (6190309351).

142377114521 is an equidigital number, since it uses as much as digits as its factorization.

142377114521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6190309350.

The product of its digits is 47040, while the sum is 38.

Adding to 142377114521 its reverse (125411773241), we get a palindrome (267788887762).

The spelling of 142377114521 in words is "one hundred forty-two billion, three hundred seventy-seven million, one hundred fourteen thousand, five hundred twenty-one".