33431213061361 has 8 divisors (see below), whose sum is σ = 34268297364000. Its totient is φ = 32595161561760.

The previous prime is 33431213061331. The next prime is 33431213061487. The reversal of 33431213061361 is 16316031213433.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33431213061361 - 2¹³ = 33431213053169 is a prime.

It is a super-3 number, since 3×33431213061361³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 33431213061361.

It is not an unprimeable number, because it can be changed into a prime (33431213061331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258135211 + ... + 258264688.

It is an arithmetic number, because the mean of its divisors is an integer number (4283537170500).

Almost surely, 2^{33431213061361} is an apocalyptic number.

It is an amenable number.

33431213061361 is a deficient number, since it is larger than the sum of its proper divisors (837084302639).

33431213061361 is a wasteful number, since it uses less digits than its factorization.

33431213061361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516401519.

The product of its (nonzero) digits is 69984, while the sum is 37.

Adding to 33431213061361 its reverse (16316031213433), we get a palindrome (49747244274794).

The spelling of 33431213061361 in words is "thirty-three trillion, four hundred thirty-one billion, two hundred thirteen million, sixty-one thousand, three hundred sixty-one".