331340001231 has 4 divisors (see below), whose sum is σ = 441786668312. Its totient is φ = 220893334152.

The previous prime is 331340001229. The next prime is 331340001241. The reversal of 331340001231 is 132100043133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132100043133 = 3 ⋅44033347711.

It is not a de Polignac number, because 331340001231 - 2¹ = 331340001229 is a prime.

It is a super-2 number, since 2×331340001231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331340001198 and 331340001207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331340001241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55223333536 + ... + 55223333541.

It is an arithmetic number, because the mean of its divisors is an integer number (110446667078).

Almost surely, 2^331340001231 is an apocalyptic number.

331340001231 is a deficient number, since it is larger than the sum of its proper divisors (110446667081).

331340001231 is a wasteful number, since it uses less digits than its factorization.

331340001231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110446667080.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 331340001231 its reverse (132100043133), we get a palindrome (463440044364).

The spelling of 331340001231 in words is "three hundred thirty-one billion, three hundred forty million, one thousand, two hundred thirty-one".