1001201011231 has 8 divisors (see below), whose sum is σ = 1004168300544. Its totient is φ = 998235562200.

The previous prime is 1001201011207. The next prime is 1001201011259. The reversal of 1001201011231 is 1321101021001.

It is a happy number.

1001201011231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001201011231 is a prime.

It is a super-2 number, since 2×1001201011231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001201011631) 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, 633480 + ... + 1550386.

It is an arithmetic number, because the mean of its divisors is an integer number (125521037568).

Almost surely, 2^{1001201011231} is an apocalyptic number.

1001201011231 is a deficient number, since it is larger than the sum of its proper divisors (2967289313).

1001201011231 is an equidigital number, since it uses as much as digits as its factorization.

1001201011231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920141.

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

Adding to 1001201011231 its reverse (1321101021001), we get a palindrome (2322302032232).

The spelling of 1001201011231 in words is "one trillion, one billion, two hundred one million, eleven thousand, two hundred thirty-one".