30312133011 has 16 divisors (see below), whose sum is σ = 44910236320. Its totient is φ = 20206571040.

The previous prime is 30312132989. The next prime is 30312133031. The reversal of 30312133011 is 11033121303.

It is a happy number.

30312133011 is a `hidden beast` number, since 303 + 1 + 21 + 330 + 11 = 666.

It is not a de Polignac number, because 30312133011 - 2⁶ = 30312132947 is a prime.

It is a super-2 number, since 2×30312133011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30312133031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413601 + ... + 481341.

It is an arithmetic number, because the mean of its divisors is an integer number (2806889770).

Almost surely, 2^30312133011 is an apocalyptic number.

30312133011 is a deficient number, since it is larger than the sum of its proper divisors (14598103309).

30312133011 is a wasteful number, since it uses less digits than its factorization.

30312133011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84323 (or 84317 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 30312133011 its reverse (11033121303), we get a palindrome (41345254314).

The spelling of 30312133011 in words is "thirty billion, three hundred twelve million, one hundred thirty-three thousand, eleven".