133434240231 has 16 divisors (see below), whose sum is σ = 187304359040. Its totient is φ = 84261552480.

The previous prime is 133434240223. The next prime is 133434240253. The reversal of 133434240231 is 132042434331.

It is a happy number.

It is not a de Polignac number, because 133434240231 - 2³ = 133434240223 is a prime.

It is a super-2 number, since 2×133434240231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133434240211) 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, 212421 + ... + 558561.

It is an arithmetic number, because the mean of its divisors is an integer number (11706522440).

Almost surely, 2^133434240231 is an apocalyptic number.

133434240231 is a deficient number, since it is larger than the sum of its proper divisors (53870118809).

133434240231 is a wasteful number, since it uses less digits than its factorization.

133434240231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352926.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 133434240231 its reverse (132042434331), we get a palindrome (265476674562).

The spelling of 133434240231 in words is "one hundred thirty-three billion, four hundred thirty-four million, two hundred forty thousand, two hundred thirty-one".