1027115121 has 4 divisors (see below), whose sum is σ = 1369486832. Its totient is φ = 684743412.

The previous prime is 1027115113. The next prime is 1027115161. The reversal of 1027115121 is 1215117201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1027115121 - 2³ = 1027115113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1027115161) 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, 171185851 + ... + 171185856.

It is an arithmetic number, because the mean of its divisors is an integer number (342371708).

Almost surely, 2^1027115121 is an apocalyptic number.

It is an amenable number.

1027115121 is a deficient number, since it is larger than the sum of its proper divisors (342371711).

1027115121 is an equidigital number, since it uses as much as digits as its factorization.

1027115121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342371710.

The product of its (nonzero) digits is 140, while the sum is 21.

The square root of 1027115121 is about 32048.6368040826. The cubic root of 1027115121 is about 1008.9578902636.

The spelling of 1027115121 in words is "one billion, twenty-seven million, one hundred fifteen thousand, one hundred twenty-one".