1240112023220 has 24 divisors (see below), whose sum is σ = 2976268856064. Its totient is φ = 425181265056.

The previous prime is 1240112023193. The next prime is 1240112023223. The reversal of 1240112023220 is 223202110421.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1240112023192 and 1240112023201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240112023223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4428971372 + ... + 4428971651.

It is an arithmetic number, because the mean of its divisors is an integer number (124011202336).

Almost surely, 2^{1240112023220} is an apocalyptic number.

1240112023220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1240112023220 is an abundant number, since it is smaller than the sum of its proper divisors (1736156832844).

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

1240112023220 is a wasteful number, since it uses less digits than its factorization.

1240112023220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8857943039 (or 8857943037 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1240112023220 its reverse (223202110421), we get a palindrome (1463314133641).

The spelling of 1240112023220 in words is "one trillion, two hundred forty billion, one hundred twelve million, twenty-three thousand, two hundred twenty".