1001331202133 has 4 divisors (see below), whose sum is σ = 1013395433568. Its totient is φ = 989266970700.

The previous prime is 1001331202111. The next prime is 1001331202187. The reversal of 1001331202133 is 3312021331001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1001331202133 - 2¹⁸ = 1001330939989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001331202433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6032115593 + ... + 6032115758.

It is an arithmetic number, because the mean of its divisors is an integer number (253348858392).

Almost surely, 2^{1001331202133} is an apocalyptic number.

It is an amenable number.

1001331202133 is a deficient number, since it is larger than the sum of its proper divisors (12064231435).

1001331202133 is an equidigital number, since it uses as much as digits as its factorization.

1001331202133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12064231434.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1001331202133 its reverse (3312021331001), we get a palindrome (4313352533134).

It can be divided in two parts, 1001 and 331202133, that multiplied together give a palindrome (331533335133).

The spelling of 1001331202133 in words is "one trillion, one billion, three hundred thirty-one million, two hundred two thousand, one hundred thirty-three".