213031133332 has 12 divisors (see below), whose sum is σ = 372840915636. Its totient is φ = 106505157440.

The previous prime is 213031133327. The next prime is 213031133369. The reversal of 213031133332 is 233331130312.

It can be written as a sum of positive squares in 2 ways, for example, as 94884945156 + 118146188176 = 308034^2 + 343724^2 .

It is a super-2 number, since 2×213031133332² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213031133297 and 213031133306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2556169 + ... + 2638192.

It is an arithmetic number, because the mean of its divisors is an integer number (31070076303).

Almost surely, 2^213031133332 is an apocalyptic number.

It is an amenable number.

213031133332 is a deficient number, since it is larger than the sum of its proper divisors (159809782304).

213031133332 is a wasteful number, since it uses less digits than its factorization.

213031133332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5204618 (or 5204616 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 213031133332 its reverse (233331130312), we get a palindrome (446362263644).

The spelling of 213031133332 in words is "two hundred thirteen billion, thirty-one million, one hundred thirty-three thousand, three hundred thirty-two".