133310123021 has 2 divisors, whose sum is σ = 133310123022. Its totient is φ = 133310123020.

The previous prime is 133310122999. The next prime is 133310123027. The reversal of 133310123021 is 120321013331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127070860900 + 6239262121 = 356470^2 + 78989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133310123021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133310122984 and 133310123002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133310123027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66655061510 + 66655061511.

It is an arithmetic number, because the mean of its divisors is an integer number (66655061511).

Almost surely, 2^133310123021 is an apocalyptic number.

It is an amenable number.

133310123021 is a deficient number, since it is larger than the sum of its proper divisors (1).

133310123021 is an equidigital number, since it uses as much as digits as its factorization.

133310123021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 133310123021 its reverse (120321013331), we get a palindrome (253631136352).

The spelling of 133310123021 in words is "one hundred thirty-three billion, three hundred ten million, one hundred twenty-three thousand, twenty-one".