133435000231 has 16 divisors (see below), whose sum is σ = 151514201440. Its totient is φ = 116493811200.

The previous prime is 133435000163. The next prime is 133435000249. The reversal of 133435000231 is 132000534331.

It is not a de Polignac number, because 133435000231 - 2²³ = 133426611623 is a prime.

It is a super-2 number, since 2×133435000231² (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 = 133435000196 and 133435000205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133435007231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300990 + ... + 597883.

It is an arithmetic number, because the mean of its divisors is an integer number (9469637590).

Almost surely, 2^133435000231 is an apocalyptic number.

133435000231 is a deficient number, since it is larger than the sum of its proper divisors (18079201209).

133435000231 is a wasteful number, since it uses less digits than its factorization.

133435000231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899506.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 133435000231 its reverse (132000534331), we get a palindrome (265435534562).

The spelling of 133435000231 in words is "one hundred thirty-three billion, four hundred thirty-five million, two hundred thirty-one", and thus it is an aban number.