33145011031 has 12 divisors (see below), whose sum is σ = 36931199536. Its totient is φ = 29719055520.

The previous prime is 33145011013. The next prime is 33145011037. The reversal of 33145011031 is 13011054133.

It is not a de Polignac number, because 33145011031 - 2³³ = 24555076439 is a prime.

It is a super-2 number, since 2×33145011031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33145010993 and 33145011011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33145011037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1867371 + ... + 1885036.

Almost surely, 2^33145011031 is an apocalyptic number.

33145011031 is a deficient number, since it is larger than the sum of its proper divisors (3786188505).

33145011031 is a wasteful number, since it uses less digits than its factorization.

33145011031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3752502 (or 3752491 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 33145011031 its reverse (13011054133), we get a palindrome (46156065164).

The spelling of 33145011031 in words is "thirty-three billion, one hundred forty-five million, eleven thousand, thirty-one".