27311011123 has 4 divisors (see below), whose sum is σ = 29793830328. Its totient is φ = 24828191920.

The previous prime is 27311011111. The next prime is 27311011127. The reversal of 27311011123 is 32111011372.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27311011123 is a prime.

It is a super-2 number, since 2×27311011123² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27311011094 and 27311011103.

It is not an unprimeable number, because it can be changed into a prime (27311011127) 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, 1241409586 + ... + 1241409607.

It is an arithmetic number, because the mean of its divisors is an integer number (7448457582).

Almost surely, 2^27311011123 is an apocalyptic number.

27311011123 is a deficient number, since it is larger than the sum of its proper divisors (2482819205).

27311011123 is a wasteful number, since it uses less digits than its factorization.

27311011123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482819204.

The product of its (nonzero) digits is 252, while the sum is 22.

Adding to 27311011123 its reverse (32111011372), we get a palindrome (59422022495).

The spelling of 27311011123 in words is "twenty-seven billion, three hundred eleven million, eleven thousand, one hundred twenty-three".