30210121332 has 36 divisors (see below), whose sum is σ = 76458940740. Its totient is φ = 10057583232.

The previous prime is 30210121313. The next prime is 30210121343. The reversal of 30210121332 is 23312101203.

30210121332 is a `hidden beast` number, since 3 + 0 + 210 + 121 + 332 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15442038756 + 14768082576 = 124266^2 + 121524^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×30210121332² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 489523 + ... + 547770.

It is an arithmetic number, because the mean of its divisors is an integer number (2123859465).

Almost surely, 2^30210121332 is an apocalyptic number.

It is an amenable number.

30210121332 is an abundant number, since it is smaller than the sum of its proper divisors (46248819408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30210121332 is a wasteful number, since it uses less digits than its factorization.

30210121332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038112 (or 1038107 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30210121332 its reverse (23312101203), we get a palindrome (53522222535).

The spelling of 30210121332 in words is "thirty billion, two hundred ten million, one hundred twenty-one thousand, three hundred thirty-two".