27001451123 has 2 divisors, whose sum is σ = 27001451124. Its totient is φ = 27001451122.

The previous prime is 27001451119. The next prime is 27001451131. The reversal of 27001451123 is 32115410072.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27001451123 - 2² = 27001451119 is a prime.

It is a super-2 number, since 2×27001451123² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27001451092 and 27001451101.

It is not a weakly prime, because it can be changed into another prime (27001451153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13500725561 + 13500725562.

It is an arithmetic number, because the mean of its divisors is an integer number (13500725562).

Almost surely, 2^27001451123 is an apocalyptic number.

27001451123 is a deficient number, since it is larger than the sum of its proper divisors (1).

27001451123 is an equidigital number, since it uses as much as digits as its factorization.

27001451123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

Adding to 27001451123 its reverse (32115410072), we get a palindrome (59116861195).

The spelling of 27001451123 in words is "twenty-seven billion, one million, four hundred fifty-one thousand, one hundred twenty-three".