1331123203001 has 8 divisors (see below), whose sum is σ = 1341647032320. Its totient is φ = 1320600038688.

The previous prime is 1331123202949. The next prime is 1331123203009. The reversal of 1331123203001 is 1003023211331.

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-1331123203001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331123203009) 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, 4331885 + ... + 4628981.

It is an arithmetic number, because the mean of its divisors is an integer number (167705879040).

Almost surely, 2^{1331123203001} is an apocalyptic number.

It is an amenable number.

1331123203001 is a deficient number, since it is larger than the sum of its proper divisors (10523829319).

1331123203001 is a wasteful number, since it uses less digits than its factorization.

1331123203001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332503.

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

Adding to 1331123203001 its reverse (1003023211331), we get a palindrome (2334146414332).

The spelling of 1331123203001 in words is "one trillion, three hundred thirty-one billion, one hundred twenty-three million, two hundred three thousand, one".