103212132 has 72 divisors (see below), whose sum is σ = 256415040. Its totient is φ = 32303040.

The previous prime is 103212103. The next prime is 103212163. The reversal of 103212132 is 231212301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 450594 + ... + 450822.

It is an arithmetic number, because the mean of its divisors is an integer number (3561320).

Almost surely, 2^103212132 is an apocalyptic number.

103212132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103212132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128207520).

103212132 is an abundant number, since it is smaller than the sum of its proper divisors (153202908).

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

103212132 is a wasteful number, since it uses less digits than its factorization.

103212132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 103212132 is about 10159.3371831040. The cubic root of 103212132 is about 469.0763995845.

Adding to 103212132 its reverse (231212301), we get a palindrome (334424433).

The spelling of 103212132 in words is "one hundred three million, two hundred twelve thousand, one hundred thirty-two".