1001321011210 has 16 divisors (see below), whose sum is σ = 1941022268136. Its totient is φ = 369718527168.

The previous prime is 1001321011177. The next prime is 1001321011241. The reversal of 1001321011210 is 121101231001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 736272111969 + 265048899241 = 858063^2 + 514829^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 3851234529 + ... + 3851234788.

Almost surely, 2^{1001321011210} is an apocalyptic number.

1001321011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001321011210 is a deficient number, since it is larger than the sum of its proper divisors (939701256926).

1001321011210 is a wasteful number, since it uses less digits than its factorization.

1001321011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7702469337.

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

Adding to 1001321011210 its reverse (121101231001), we get a palindrome (1122422242211).

The spelling of 1001321011210 in words is "one trillion, one billion, three hundred twenty-one million, eleven thousand, two hundred ten".