27102053213 has 4 divisors (see below), whose sum is σ = 27104726460. Its totient is φ = 27099379968.

The previous prime is 27102053179. The next prime is 27102053221. The reversal of 27102053213 is 31235020172.

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 13894987129 + 13207066084 = 117877^2 + 114922^2 .

It is a cyclic number.

It is not a de Polignac number, because 27102053213 - 2²⁸ = 26833617757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27102053513) 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, 1321358 + ... + 1341711.

It is an arithmetic number, because the mean of its divisors is an integer number (6776181615).

Almost surely, 2^27102053213 is an apocalyptic number.

It is an amenable number.

27102053213 is a deficient number, since it is larger than the sum of its proper divisors (2673247).

27102053213 is a wasteful number, since it uses less digits than its factorization.

27102053213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673246.

The product of its (nonzero) digits is 2520, while the sum is 26.

Adding to 27102053213 its reverse (31235020172), we get a palindrome (58337073385).

The spelling of 27102053213 in words is "twenty-seven billion, one hundred two million, fifty-three thousand, two hundred thirteen".