1231332078 has 32 divisors (see below), whose sum is σ = 2497996800. Its totient is φ = 404572896.

The previous prime is 1231332077. The next prime is 1231332079. The reversal of 1231332078 is 8702331321.

It is an interprime number because it is at equal distance from previous prime (1231332077) and next prime (1231332079).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231332077) 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, 339000 + ... + 342612.

It is an arithmetic number, because the mean of its divisors is an integer number (78062400).

Almost surely, 2^1231332078 is an apocalyptic number.

1231332078 is an abundant number, since it is smaller than the sum of its proper divisors (1266664722).

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

1231332078 is a wasteful number, since it uses less digits than its factorization.

1231332078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4416.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 1231332078 is about 35090.3416626285. The cubic root of 1231332078 is about 1071.8279169599.

Adding to 1231332078 its reverse (8702331321), we get a palindrome (9933663399).

The spelling of 1231332078 in words is "one billion, two hundred thirty-one million, three hundred thirty-two thousand, seventy-eight".