7801112113001 has 4 divisors (see below), whose sum is σ = 7801382853972. Its totient is φ = 7800841372032.

The previous prime is 7801112112961. The next prime is 7801112113051. The reversal of 7801112113001 is 1003112111087.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3921394023001 + 3879718090000 = 1980251^2 + 1969700^2 .

It is a cyclic number.

It is not a de Polignac number, because 7801112113001 - 2³⁴ = 7783932243817 is a prime.

It is a super-2 number, since 2×7801112113001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7801112113051) 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, 135327260 + ... + 135384893.

It is an arithmetic number, because the mean of its divisors is an integer number (1950345713493).

Almost surely, 2^{7801112113001} is an apocalyptic number.

It is an amenable number.

7801112113001 is a deficient number, since it is larger than the sum of its proper divisors (270740971).

7801112113001 is a wasteful number, since it uses less digits than its factorization.

7801112113001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270740970.

The product of its (nonzero) digits is 336, while the sum is 26.

Adding to 7801112113001 its reverse (1003112111087), we get a palindrome (8804224224088).

The spelling of 7801112113001 in words is "seven trillion, eight hundred one billion, one hundred twelve million, one hundred thirteen thousand, one".