142231232132021 has 16 divisors (see below), whose sum is σ = 142502986454400. Its totient is φ = 141959766570048.

The previous prime is 142231232131973. The next prime is 142231232132053. The reversal of 142231232132021 is 120231232132241.

It is a cyclic number.

It is not a de Polignac number, because 142231232132021 - 2⁶ = 142231232131957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142231232132071) 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, 9786769871 + ... + 9786784403.

It is an arithmetic number, because the mean of its divisors is an integer number (8906436653400).

Almost surely, 2^{142231232132021} is an apocalyptic number.

It is an amenable number.

142231232132021 is a deficient number, since it is larger than the sum of its proper divisors (271754322379).

142231232132021 is a wasteful number, since it uses less digits than its factorization.

142231232132021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23228.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 142231232132021 its reverse (120231232132241), we get a palindrome (262462464264262).

The spelling of 142231232132021 in words is "one hundred forty-two trillion, two hundred thirty-one billion, two hundred thirty-two million, one hundred thirty-two thousand, twenty-one".