1001131220131 has 8 divisors (see below), whose sum is σ = 1204368385280. Its totient is φ = 812948659848.

The previous prime is 1001131220129. The next prime is 1001131220143. The reversal of 1001131220131 is 1310221311001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1001131220131 - 2¹ = 1001131220129 is a prime.

It is a super-2 number, since 2×1001131220131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001131220431) 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, 3763651071 + ... + 3763651336.

It is an arithmetic number, because the mean of its divisors is an integer number (150546048160).

Almost surely, 2^{1001131220131} is an apocalyptic number.

1001131220131 is a deficient number, since it is larger than the sum of its proper divisors (203237165149).

1001131220131 is an equidigital number, since it uses as much as digits as its factorization.

1001131220131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7527302433.

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

Adding to 1001131220131 its reverse (1310221311001), we get a palindrome (2311352531132).

The spelling of 1001131220131 in words is "one trillion, one billion, one hundred thirty-one million, two hundred twenty thousand, one hundred thirty-one".