1205102113 has 12 divisors (see below), whose sum is σ = 1273289808. Its totient is φ = 1140399000.

The previous prime is 1205102077. The next prime is 1205102141. The reversal of 1205102113 is 3112015021.

It is not a de Polignac number, because 1205102113 - 2¹⁷ = 1204971041 is a prime.

It is a super-2 number, since 2×1205102113² = 2904542205514129538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1205102183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 534238 + ... + 536488.

It is an arithmetic number, because the mean of its divisors is an integer number (106107484).

Almost surely, 2^1205102113 is an apocalyptic number.

It is an amenable number.

1205102113 is a deficient number, since it is larger than the sum of its proper divisors (68187695).

1205102113 is a wasteful number, since it uses less digits than its factorization.

1205102113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3772 (or 3753 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1205102113 is about 34714.5806974533. The cubic root of 1205102113 is about 1064.1624964404.

Adding to 1205102113 its reverse (3112015021), we get a palindrome (4317117134).

The spelling of 1205102113 in words is "one billion, two hundred five million, one hundred two thousand, one hundred thirteen".