1001321311210 has 16 divisors (see below), whose sum is σ = 1966230938592. Its totient is φ = 364116840400.

The previous prime is 1001321311187. The next prime is 1001321311231. The reversal of 1001321311210 is 121131231001.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4551460396 + ... + 4551460615.

It is an arithmetic number, because the mean of its divisors is an integer number (122889433662).

Almost surely, 2^{1001321311210} is an apocalyptic number.

1001321311210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001321311210 is a deficient number, since it is larger than the sum of its proper divisors (964909627382).

1001321311210 is a wasteful number, since it uses less digits than its factorization.

1001321311210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9102921029.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1001321311210 its reverse (121131231001), we get a palindrome (1122452542211).

The spelling of 1001321311210 in words is "one trillion, one billion, three hundred twenty-one million, three hundred eleven thousand, two hundred ten".