133031231212111 has 8 divisors (see below), whose sum is σ = 133316715368304. Its totient is φ = 132745749709440.

The previous prime is 133031231212091. The next prime is 133031231212127. The reversal of 133031231212111 is 111212132130331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133031231212111 - 2¹¹ = 133031231210063 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 (133031231212141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125362231 + ... + 126418951.

It is an arithmetic number, because the mean of its divisors is an integer number (16664589421038).

Almost surely, 2^{133031231212111} is an apocalyptic number.

133031231212111 is a deficient number, since it is larger than the sum of its proper divisors (285484156193).

133031231212111 is a wasteful number, since it uses less digits than its factorization.

133031231212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326761.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 133031231212111 its reverse (111212132130331), we get a palindrome (244243363342442).

The spelling of 133031231212111 in words is "one hundred thirty-three trillion, thirty-one billion, two hundred thirty-one million, two hundred twelve thousand, one hundred eleven".