3213121000232 has 64 divisors (see below), whose sum is σ = 7082208302400. Its totient is φ = 1347333258240.

The previous prime is 3213121000231. The next prime is 3213121000283. The reversal of 3213121000232 is 2320001213123.

It is not an unprimeable number, because it can be changed into a prime (3213121000231) 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, 998144 + ... + 2724432.

It is an arithmetic number, because the mean of its divisors is an integer number (110659504725).

Almost surely, 2^{3213121000232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3213121000232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3541104151200).

3213121000232 is an abundant number, since it is smaller than the sum of its proper divisors (3869087302168).

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

3213121000232 is a wasteful number, since it uses less digits than its factorization.

3213121000232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727946 (or 1727942 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 3213121000232 its reverse (2320001213123), we get a palindrome (5533122213355).

The spelling of 3213121000232 in words is "three trillion, two hundred thirteen billion, one hundred twenty-one million, two hundred thirty-two", and thus it is an aban number.