142205601331 has 2 divisors, whose sum is σ = 142205601332. Its totient is φ = 142205601330.

The previous prime is 142205601323. The next prime is 142205601397. The reversal of 142205601331 is 133106502241.

It is a weak prime.

It is an emirp because it is prime and its reverse (133106502241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142205601331 - 2³ = 142205601323 is a prime.

It is a super-2 number, since 2×142205601331² (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 142205601331.

It is not a weakly prime, because it can be changed into another prime (142205608331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71102800665 + 71102800666.

It is an arithmetic number, because the mean of its divisors is an integer number (71102800666).

Almost surely, 2^142205601331 is an apocalyptic number.

142205601331 is a deficient number, since it is larger than the sum of its proper divisors (1).

142205601331 is an equidigital number, since it uses as much as digits as its factorization.

142205601331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 142205601331 in words is "one hundred forty-two billion, two hundred five million, six hundred one thousand, three hundred thirty-one".