1213120124 has 6 divisors (see below), whose sum is σ = 2122960224. Its totient is φ = 606560060.

The previous prime is 1213120123. The next prime is 1213120159. The reversal of 1213120124 is 4210213121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213120123) 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 as a sum of consecutive naturals, namely, 151640012 + ... + 151640019.

It is an arithmetic number, because the mean of its divisors is an integer number (353826704).

Almost surely, 2^1213120124 is an apocalyptic number.

It is an amenable number.

1213120124 is a deficient number, since it is larger than the sum of its proper divisors (909840100).

1213120124 is a wasteful number, since it uses less digits than its factorization.

1213120124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303280035 (or 303280033 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1213120124 is about 34829.8740164245. The cubic root of 1213120124 is about 1066.5173765456.

Adding to 1213120124 its reverse (4210213121), we get a palindrome (5423333245).

The spelling of 1213120124 in words is "one billion, two hundred thirteen million, one hundred twenty thousand, one hundred twenty-four".