1211310102 has 32 divisors (see below), whose sum is σ = 2457734400. Its totient is φ = 397960160.

The previous prime is 1211310083. The next prime is 1211310131. The reversal of 1211310102 is 2010131121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111943 + ... + 122285.

It is an arithmetic number, because the mean of its divisors is an integer number (76804200).

Almost surely, 2^1211310102 is an apocalyptic number.

1211310102 is an abundant number, since it is smaller than the sum of its proper divisors (1246424298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211310102 is a wasteful number, since it uses less digits than its factorization.

1211310102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10628.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1211310102 is about 34803.8805595008. The cubic root of 1211310102 is about 1065.9866841709.

Adding to 1211310102 its reverse (2010131121), we get a palindrome (3221441223).

The spelling of 1211310102 in words is "one billion, two hundred eleven million, three hundred ten thousand, one hundred two".