133333032431 has 2 divisors, whose sum is σ = 133333032432. Its totient is φ = 133333032430.

The previous prime is 133333032397. The next prime is 133333032461. The reversal of 133333032431 is 134230333331.

It is a strong prime.

It is an emirp because it is prime and its reverse (134230333331) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133333032431 is a prime.

It is a super-2 number, since 2×133333032431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133333032394 and 133333032403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133333032461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66666516215 + 66666516216.

It is an arithmetic number, because the mean of its divisors is an integer number (66666516216).

Almost surely, 2^133333032431 is an apocalyptic number.

133333032431 is a deficient number, since it is larger than the sum of its proper divisors (1).

133333032431 is an equidigital number, since it uses as much as digits as its factorization.

133333032431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 29.

Adding to 133333032431 its reverse (134230333331), we get a palindrome (267563365762).

The spelling of 133333032431 in words is "one hundred thirty-three billion, three hundred thirty-three million, thirty-two thousand, four hundred thirty-one".