31111323432133 has 8 divisors (see below), whose sum is σ = 37647315749952. Its totient is φ = 25098210499776.

The previous prime is 31111323432107. The next prime is 31111323432151. The reversal of 31111323432133 is 33123432311113.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31111323432133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31111323432095 and 31111323432104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31111323432193) 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 7 ways as a sum of consecutive naturals, for example, 130719846235 + ... + 130719846472.

It is an arithmetic number, because the mean of its divisors is an integer number (4705914468744).

Almost surely, 2^{31111323432133} is an apocalyptic number.

It is an amenable number.

31111323432133 is a deficient number, since it is larger than the sum of its proper divisors (6535992317819).

31111323432133 is a wasteful number, since it uses less digits than its factorization.

31111323432133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261439692731.

The product of its digits is 11664, while the sum is 31.

Adding to 31111323432133 its reverse (33123432311113), we get a palindrome (64234755743246).

The spelling of 31111323432133 in words is "thirty-one trillion, one hundred eleven billion, three hundred twenty-three million, four hundred thirty-two thousand, one hundred thirty-three".