102011001311 has 6 divisors (see below), whose sum is σ = 107662580712. Its totient is φ = 96642000900.

The previous prime is 102011001299. The next prime is 102011001331. The reversal of 102011001311 is 113100110201.

It is a happy number.

It is not a de Polignac number, because 102011001311 - 2²⁶ = 101943892447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102011001292 and 102011001301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011001331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141289115 + ... + 141289836.

It is an arithmetic number, because the mean of its divisors is an integer number (17943763452).

Almost surely, 2^102011001311 is an apocalyptic number.

102011001311 is a deficient number, since it is larger than the sum of its proper divisors (5651579401).

102011001311 is an equidigital number, since it uses as much as digits as its factorization.

102011001311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282578989 (or 282578970 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 102011001311 its reverse (113100110201), we get a palindrome (215111111512).

The spelling of 102011001311 in words is "one hundred two billion, eleven million, one thousand, three hundred eleven".