1213322103 has 24 divisors (see below), whose sum is σ = 2011565088. Its totient is φ = 690342912.

The previous prime is 1213322101. The next prime is 1213322153. The reversal of 1213322103 is 3012233121.

1213322103 is a `hidden beast` number, since 121 + 332 + 210 + 3 = 666.

It is not a de Polignac number, because 1213322103 - 2¹ = 1213322101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213322101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26650 + ... + 56007.

It is an arithmetic number, because the mean of its divisors is an integer number (83815212).

Almost surely, 2^1213322103 is an apocalyptic number.

1213322103 is a deficient number, since it is larger than the sum of its proper divisors (798242985).

1213322103 is a wasteful number, since it uses less digits than its factorization.

1213322103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82903 (or 82900 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1213322103 is about 34832.7734037932. The cubic root of 1213322103 is about 1066.5765633634.

Adding to 1213322103 its reverse (3012233121), we get a palindrome (4225555224).

The spelling of 1213322103 in words is "one billion, two hundred thirteen million, three hundred twenty-two thousand, one hundred three".