2001030311131 has 4 divisors (see below), whose sum is σ = 2001131859600. Its totient is φ = 2000928762664.

The previous prime is 2001030311123. The next prime is 2001030311153. The reversal of 2001030311131 is 1311130301002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2001030311131 - 2³ = 2001030311123 is a prime.

It is a super-2 number, since 2×2001030311131² (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 (2001030311431) 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, 50744671 + ... + 50784088.

It is an arithmetic number, because the mean of its divisors is an integer number (500282964900).

Almost surely, 2^{2001030311131} is an apocalyptic number.

2001030311131 is a deficient number, since it is larger than the sum of its proper divisors (101548469).

2001030311131 is a wasteful number, since it uses less digits than its factorization.

2001030311131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101548468.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 2001030311131 its reverse (1311130301002), we get a palindrome (3312160612133).

The spelling of 2001030311131 in words is "two trillion, one billion, thirty million, three hundred eleven thousand, one hundred thirty-one".