1212412103 has 16 divisors (see below), whose sum is σ = 1472457024. Its totient is φ = 974522880.

The previous prime is 1212412081. The next prime is 1212412109. The reversal of 1212412103 is 3012142121.

It is a cyclic number.

It is not a de Polignac number, because 1212412103 - 2⁸ = 1212411847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212412109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14573 + ... + 51353.

It is an arithmetic number, because the mean of its divisors is an integer number (92028564).

Almost surely, 2^1212412103 is an apocalyptic number.

1212412103 is a deficient number, since it is larger than the sum of its proper divisors (260044921).

1212412103 is a wasteful number, since it uses less digits than its factorization.

1212412103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37082.

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

The square root of 1212412103 is about 34819.7085427205. The cubic root of 1212412103 is about 1066.3098500645.

Adding to 1212412103 its reverse (3012142121), we get a palindrome (4224554224).

The spelling of 1212412103 in words is "one billion, two hundred twelve million, four hundred twelve thousand, one hundred three".