1233312420 has 48 divisors (see below), whose sum is σ = 3635029440. Its totient is φ = 311573376.

The previous prime is 1233312407. The next prime is 1233312433. The reversal of 1233312420 is 242133321.

It is an interprime number because it is at equal distance from previous prime (1233312407) and next prime (1233312433).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539787 + ... + 542066.

It is an arithmetic number, because the mean of its divisors is an integer number (75729780).

Almost surely, 2^1233312420 is an apocalyptic number.

1233312420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1233312420 is an abundant number, since it is smaller than the sum of its proper divisors (2401717020).

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

1233312420 is a wasteful number, since it uses less digits than its factorization.

1233312420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081884 (or 1081882 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1233312420 is about 35118.5480907170. The cubic root of 1233312420 is about 1072.4022134153.

Adding to 1233312420 its reverse (242133321), we get a palindrome (1475445741).

It can be divided in two parts, 123331 and 2420, that added together give a triangular number (125751 = T₅₀₁).

The spelling of 1233312420 in words is "one billion, two hundred thirty-three million, three hundred twelve thousand, four hundred twenty".