1321002101110 has 16 divisors (see below), whose sum is σ = 2459797016400. Its totient is φ = 510180121696.

The previous prime is 1321002101071. The next prime is 1321002101119. The reversal of 1321002101110 is 111012001231.

It is a happy number.

It is a super-2 number, since 2×1321002101110² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321002101119) 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, 2277589540 + ... + 2277590119.

It is an arithmetic number, because the mean of its divisors is an integer number (153737313525).

Almost surely, 2^{1321002101110} is an apocalyptic number.

1321002101110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321002101110 is a deficient number, since it is larger than the sum of its proper divisors (1138794915290).

1321002101110 is a wasteful number, since it uses less digits than its factorization.

1321002101110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4555179695.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1321002101110 its reverse (111012001231), we get a palindrome (1432014102341).

The spelling of 1321002101110 in words is "one trillion, three hundred twenty-one billion, two million, one hundred one thousand, one hundred ten".