33000123213131 has 4 divisors (see below), whose sum is σ = 33000140831112. Its totient is φ = 33000105595152.

The previous prime is 33000123213121. The next prime is 33000123213133. The reversal of 33000123213131 is 13131232100033.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 33000123213131 - 2¹⁸ = 33000122950987 is a prime.

It is a super-2 number, since 2×33000123213131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33000123213097 and 33000123213106.

It is not an unprimeable number, because it can be changed into a prime (33000123213133) 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, 5612786 + ... + 9874391.

It is an arithmetic number, because the mean of its divisors is an integer number (8250035207778).

Almost surely, 2^{33000123213131} is an apocalyptic number.

33000123213131 is a deficient number, since it is larger than the sum of its proper divisors (17617981).

33000123213131 is a wasteful number, since it uses less digits than its factorization.

33000123213131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17617980.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 33000123213131 its reverse (13131232100033), we get a palindrome (46131355313164).

The spelling of 33000123213131 in words is "thirty-three trillion, one hundred twenty-three million, two hundred thirteen thousand, one hundred thirty-one".