1230111340 has 24 divisors (see below), whose sum is σ = 2596354992. Its totient is φ = 489545280.

The previous prime is 1230111331. The next prime is 1230111349. The reversal of 1230111340 is 431110321.

It is an interprime number because it is at equal distance from previous prime (1230111331) and next prime (1230111349).

It is not an unprimeable number, because it can be changed into a prime (1230111349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152166 + ... + 160045.

It is an arithmetic number, because the mean of its divisors is an integer number (108181458).

Almost surely, 2^1230111340 is an apocalyptic number.

1230111340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230111340 is an abundant number, since it is smaller than the sum of its proper divisors (1366243652).

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

1230111340 is a wasteful number, since it uses less digits than its factorization.

1230111340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312417 (or 312415 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1230111340 is about 35072.9431328481. The cubic root of 1230111340 is about 1071.4735977861.

Adding to 1230111340 its reverse (431110321), we get a palindrome (1661221661).

The spelling of 1230111340 in words is "one billion, two hundred thirty million, one hundred eleven thousand, three hundred forty".