2130121234 has 8 divisors (see below), whose sum is σ = 3198045708. Its totient is φ = 1064106000.

The previous prime is 2130121219. The next prime is 2130121237. The reversal of 2130121234 is 4321210312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2093337009 + 36784225 = 45753^2 + 6065^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2130121237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474517 + ... + 478984.

Almost surely, 2^2130121234 is an apocalyptic number.

2130121234 is a deficient number, since it is larger than the sum of its proper divisors (1067924474).

2130121234 is a wasteful number, since it uses less digits than its factorization.

2130121234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954620.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2130121234 is about 46153.2364412291. The cubic root of 2130121234 is about 1286.6727616411.

Adding to 2130121234 its reverse (4321210312), we get a palindrome (6451331546).

The spelling of 2130121234 in words is "two billion, one hundred thirty million, one hundred twenty-one thousand, two hundred thirty-four".