331142212989 has 20 divisors (see below), whose sum is σ = 565336265824. Its totient is φ = 189224121384.

The previous prime is 331142212949. The next prime is 331142213071. The reversal of 331142212989 is 989212241133.

331142212989 is a `hidden beast` number, since 3 + 311 + 42 + 2 + 1 + 298 + 9 = 666.

It is not a de Polignac number, because 331142212989 - 2¹⁹ = 331141688701 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 (331142212949) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 292011967 + ... + 292013100.

Almost surely, 2^331142212989 is an apocalyptic number.

It is an amenable number.

331142212989 is a deficient number, since it is larger than the sum of its proper divisors (234194052835).

331142212989 is an equidigital number, since it uses as much as digits as its factorization.

331142212989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584025086 (or 584025077 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The spelling of 331142212989 in words is "three hundred thirty-one billion, one hundred forty-two million, two hundred twelve thousand, nine hundred eighty-nine".