133103020231 has 4 divisors (see below), whose sum is σ = 133126058200. Its totient is φ = 133079982264.

The previous prime is 133103020229. The next prime is 133103020249. The reversal of 133103020231 is 132020301331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132020301331 = 4951 ⋅26665381.

It is a cyclic number.

It is not a de Polignac number, because 133103020231 - 2¹ = 133103020229 is a prime.

It is a super-2 number, since 2×133103020231² (a number of 23 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 = 133103020199 and 133103020208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133103020031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11510316 + ... + 11521873.

It is an arithmetic number, because the mean of its divisors is an integer number (33281514550).

Almost surely, 2^133103020231 is an apocalyptic number.

133103020231 is a deficient number, since it is larger than the sum of its proper divisors (23037969).

133103020231 is an equidigital number, since it uses as much as digits as its factorization.

133103020231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23037968.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 133103020231 its reverse (132020301331), we get a palindrome (265123321562).

The spelling of 133103020231 in words is "one hundred thirty-three billion, one hundred three million, twenty thousand, two hundred thirty-one".