1230087121 has 2 divisors, whose sum is σ = 1230087122. Its totient is φ = 1230087120.

The previous prime is 1230087119. The next prime is 1230087137. The reversal of 1230087121 is 1217800321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1153349521 + 76737600 = 33961^2 + 8760^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230087121 - 2¹ = 1230087119 is a prime.

It is a super-2 number, since 2×1230087121² = 3026228650500137282, which contains 22 as substring.

Together with 1230087119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1230082121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615043560 + 615043561.

It is an arithmetic number, because the mean of its divisors is an integer number (615043561).

Almost surely, 2^1230087121 is an apocalyptic number.

It is an amenable number.

1230087121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230087121 is an equidigital number, since it uses as much as digits as its factorization.

1230087121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1230087121 is about 35072.5978650000. The cubic root of 1230087121 is about 1071.4665658510.

Adding to 1230087121 its reverse (1217800321), we get a palindrome (2447887442).

The spelling of 1230087121 in words is "one billion, two hundred thirty million, eighty-seven thousand, one hundred twenty-one".