133321023131 has 2 divisors, whose sum is σ = 133321023132. Its totient is φ = 133321023130.

The previous prime is 133321023113. The next prime is 133321023163. The reversal of 133321023131 is 131320123331.

Together with previous prime (133321023113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (131320123331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133321023131 - 2⁶ = 133321023067 is a prime.

It is a super-2 number, since 2×133321023131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133321023097 and 133321023106.

It is not a weakly prime, because it can be changed into another prime (133321323131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66660511565 + 66660511566.

It is an arithmetic number, because the mean of its divisors is an integer number (66660511566).

Almost surely, 2^133321023131 is an apocalyptic number.

133321023131 is a deficient number, since it is larger than the sum of its proper divisors (1).

133321023131 is an equidigital number, since it uses as much as digits as its factorization.

133321023131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 133321023131 its reverse (131320123331), we get a palindrome (264641146462).

The spelling of 133321023131 in words is "one hundred thirty-three billion, three hundred twenty-one million, twenty-three thousand, one hundred thirty-one".