33240134431 has 16 divisors (see below), whose sum is σ = 39878830080. Its totient is φ = 27105121440.

The previous prime is 33240134423. The next prime is 33240134449. The reversal of 33240134431 is 13443104233.

It is a cyclic number.

It is not a de Polignac number, because 33240134431 - 2³ = 33240134423 is a prime.

It is a super-2 number, since 2×33240134431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33240134431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33240135431) 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, 1285336 + ... + 1310941.

It is an arithmetic number, because the mean of its divisors is an integer number (2492426880).

Almost surely, 2^33240134431 is an apocalyptic number.

33240134431 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

33240134431 is a deficient number, since it is larger than the sum of its proper divisors (6638695649).

33240134431 is a wasteful number, since it uses less digits than its factorization.

33240134431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596374.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 33240134431 its reverse (13443104233), we get a palindrome (46683238664).

The spelling of 33240134431 in words is "thirty-three billion, two hundred forty million, one hundred thirty-four thousand, four hundred thirty-one".