1301230020311 has 12 divisors (see below), whose sum is σ = 1439003470752. Its totient is φ = 1175579323776.

The previous prime is 1301230020287. The next prime is 1301230020319. The reversal of 1301230020311 is 1130200321031.

It is a de Polignac number, because none of the positive numbers 2^k-1301230020311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1301230020311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301230020319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81902546 + ... + 81918431.

It is an arithmetic number, because the mean of its divisors is an integer number (119916955896).

Almost surely, 2^{1301230020311} is an apocalyptic number.

1301230020311 is a deficient number, since it is larger than the sum of its proper divisors (137773450441).

1301230020311 is a wasteful number, since it uses less digits than its factorization.

1301230020311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163821050 (or 163821037 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1301230020311 its reverse (1130200321031), we get a palindrome (2431430341342).

The spelling of 1301230020311 in words is "one trillion, three hundred one billion, two hundred thirty million, twenty thousand, three hundred eleven".