1212323132 has 12 divisors (see below), whose sum is σ = 2124266760. Its totient is φ = 605389776.

The previous prime is 1212323129. The next prime is 1212323141. The reversal of 1212323132 is 2313232121.

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, 189407 + ... + 195702.

It is an arithmetic number, because the mean of its divisors is an integer number (177022230).

Almost surely, 2^1212323132 is an apocalyptic number.

It is an amenable number.

1212323132 is a deficient number, since it is larger than the sum of its proper divisors (911943628).

1212323132 is a wasteful number, since it uses less digits than its factorization.

1212323132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385900 (or 385898 counting only the distinct ones).

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

The square root of 1212323132 is about 34818.4309238656. The cubic root of 1212323132 is about 1066.2837662563.

Adding to 1212323132 its reverse (2313232121), we get a palindrome (3525555253).

The spelling of 1212323132 in words is "one billion, two hundred twelve million, three hundred twenty-three thousand, one hundred thirty-two".