121231211324 has 12 divisors (see below), whose sum is σ = 213065156304. Its totient is φ = 60355452384.

The previous prime is 121231211219. The next prime is 121231211351. The reversal of 121231211324 is 423112132121.

It is a self number, because there is not a number n which added to its sum of digits gives 121231211324.

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, 65037272 + ... + 65039135.

It is an arithmetic number, because the mean of its divisors is an integer number (17755429692).

Almost surely, 2^121231211324 is an apocalyptic number.

It is an amenable number.

121231211324 is a deficient number, since it is larger than the sum of its proper divisors (91833944980).

121231211324 is a wasteful number, since it uses less digits than its factorization.

121231211324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130076644 (or 130076642 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

Adding to 121231211324 its reverse (423112132121), we get a palindrome (544343343445).

The spelling of 121231211324 in words is "one hundred twenty-one billion, two hundred thirty-one million, two hundred eleven thousand, three hundred twenty-four".