1212324311 has 16 divisors (see below), whose sum is σ = 1351824768. Its totient is φ = 1077972000.

The previous prime is 1212324301. The next prime is 1212324313. The reversal of 1212324311 is 1134232121.

It is a cyclic number.

It is not a de Polignac number, because 1212324311 - 2¹⁸ = 1212062167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212324313) 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, 85640 + ... + 98786.

It is an arithmetic number, because the mean of its divisors is an integer number (84489048).

Almost surely, 2^1212324311 is an apocalyptic number.

1212324311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1212324311 is a deficient number, since it is larger than the sum of its proper divisors (139500457).

1212324311 is a wasteful number, since it uses less digits than its factorization.

1212324311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13342.

The product of its digits is 288, while the sum is 20.

The square root of 1212324311 is about 34818.4478545497. The cubic root of 1212324311 is about 1066.2841119144.

Adding to 1212324311 its reverse (1134232121), we get a palindrome (2346556432).

It can be divided in two parts, 1212 and 324311, that added together give a palindrome (325523).

The spelling of 1212324311 in words is "one billion, two hundred twelve million, three hundred twenty-four thousand, three hundred eleven".