1312244021110 has 24 divisors (see below), whose sum is σ = 2596291065648. Its totient is φ = 477179643600.

The previous prime is 1312244021059. The next prime is 1312244021113. The reversal of 1312244021110 is 111204422131.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312244021113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 542248386 + ... + 542250805.

It is an arithmetic number, because the mean of its divisors is an integer number (108178794402).

Almost surely, 2^{1312244021110} is an apocalyptic number.

1312244021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312244021110 is a deficient number, since it is larger than the sum of its proper divisors (1284047044538).

1312244021110 is a wasteful number, since it uses less digits than its factorization.

1312244021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084499220 (or 1084499209 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 1312244021110 its reverse (111204422131), we get a palindrome (1423448443241).

The spelling of 1312244021110 in words is "one trillion, three hundred twelve billion, two hundred forty-four million, twenty-one thousand, one hundred ten".