33121203130 has 24 divisors (see below), whose sum is σ = 62322969492. Its totient is φ = 12672458304.

The previous prime is 33121203119. The next prime is 33121203131. The reversal of 33121203130 is 3130212133.

It can be written as a sum of positive squares in 2 ways, for example, as 29732449761 + 3388753369 = 172431^2 + 58213^2 .

It is a junction number, because it is equal to n+sod(n) for n = 33121203098 and 33121203107.

It is not an unprimeable number, because it can be changed into a prime (33121203131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3125259 + ... + 3135838.

Almost surely, 2^33121203130 is an apocalyptic number.

33121203130 is a deficient number, since it is larger than the sum of its proper divisors (29201766362).

33121203130 is a wasteful number, since it uses less digits than its factorization.

33121203130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6261150 (or 6261127 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 33121203130 its reverse (3130212133), we get a palindrome (36251415263).

The spelling of 33121203130 in words is "thirty-three billion, one hundred twenty-one million, two hundred three thousand, one hundred thirty".