1230151121 has 4 divisors (see below), whose sum is σ = 1251001200. Its totient is φ = 1209301044.

The previous prime is 1230151079. The next prime is 1230151123. The reversal of 1230151121 is 1211510321.

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 a cyclic number.

It is not a de Polignac number, because 1230151121 - 2¹⁸ = 1229888977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230151121.

It is not an unprimeable number, because it can be changed into a prime (1230151123) 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, 10424951 + ... + 10425068.

It is an arithmetic number, because the mean of its divisors is an integer number (312750300).

Almost surely, 2^1230151121 is an apocalyptic number.

It is an amenable number.

1230151121 is a deficient number, since it is larger than the sum of its proper divisors (20850079).

1230151121 is an equidigital number, since it uses as much as digits as its factorization.

1230151121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20850078.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 1230151121 is about 35073.5102463383. The cubic root of 1230151121 is about 1071.4851479145.

Adding to 1230151121 its reverse (1211510321), we get a palindrome (2441661442).

The spelling of 1230151121 in words is "one billion, two hundred thirty million, one hundred fifty-one thousand, one hundred twenty-one".