33131133253 has 4 divisors (see below), whose sum is σ = 33901624768. Its totient is φ = 32360641740.

The previous prime is 33131133241. The next prime is 33131133257. The reversal of 33131133253 is 35233113133.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35233113133 = 30271 ⋅1163923.

It is a cyclic number.

It is not a de Polignac number, because 33131133253 - 2¹⁷ = 33131002181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33131133257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385245693 + ... + 385245778.

It is an arithmetic number, because the mean of its divisors is an integer number (8475406192).

Almost surely, 2^33131133253 is an apocalyptic number.

It is an amenable number.

33131133253 is a deficient number, since it is larger than the sum of its proper divisors (770491515).

33131133253 is an equidigital number, since it uses as much as digits as its factorization.

33131133253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770491514.

The product of its digits is 7290, while the sum is 28.

Adding to 33131133253 its reverse (35233113133), we get a palindrome (68364246386).

The spelling of 33131133253 in words is "thirty-three billion, one hundred thirty-one million, one hundred thirty-three thousand, two hundred fifty-three".