30330132231 has 64 divisors (see below), whose sum is σ = 49451212800. Its totient is φ = 16149974400.

The previous prime is 30330132221. The next prime is 30330132277. The reversal of 30330132231 is 13223103303.

It is not a de Polignac number, because 30330132231 - 2¹¹ = 30330130183 is a prime.

It is a super-2 number, since 2×30330132231² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 30330132198 and 30330132207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30330132221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15325000 + ... + 15326978.

It is an arithmetic number, because the mean of its divisors is an integer number (772675200).

Almost surely, 2^30330132231 is an apocalyptic number.

30330132231 is a deficient number, since it is larger than the sum of its proper divisors (19121080569).

30330132231 is a wasteful number, since it uses less digits than its factorization.

30330132231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 30330132231 its reverse (13223103303), we get a palindrome (43553235534).

The spelling of 30330132231 in words is "thirty billion, three hundred thirty million, one hundred thirty-two thousand, two hundred thirty-one".