142869221012321 has 16 divisors (see below), whose sum is σ = 150471206880000. Its totient is φ = 135275497123968.

The previous prime is 142869221012317. The next prime is 142869221012333. The reversal of 142869221012321 is 123210122968241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 142869221012321 - 2² = 142869221012317 is a prime.

It is a super-2 number, since 2×142869221012321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142869221015321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 896006015 + ... + 896165451.

It is an arithmetic number, because the mean of its divisors is an integer number (9404450430000).

Almost surely, 2^{142869221012321} is an apocalyptic number.

It is an amenable number.

142869221012321 is a deficient number, since it is larger than the sum of its proper divisors (7601985867679).

142869221012321 is a wasteful number, since it uses less digits than its factorization.

142869221012321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185048.

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 142869221012321 in words is "one hundred forty-two trillion, eight hundred sixty-nine billion, two hundred twenty-one million, twelve thousand, three hundred twenty-one".