1211230104 has 32 divisors (see below), whose sum is σ = 3460657920. Its totient is φ = 346065696.

The previous prime is 1211230079. The next prime is 1211230121. The reversal of 1211230104 is 4010321121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3604684 + ... + 3605019.

It is an arithmetic number, because the mean of its divisors is an integer number (108145560).

Almost surely, 2^1211230104 is an apocalyptic number.

1211230104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1211230104 is an abundant number, since it is smaller than the sum of its proper divisors (2249427816).

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

1211230104 is a wasteful number, since it uses less digits than its factorization.

1211230104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7209719 (or 7209715 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1211230104 is about 34802.7312721286. The cubic root of 1211230104 is about 1065.9632168303.

Adding to 1211230104 its reverse (4010321121), we get a palindrome (5221551225).

The spelling of 1211230104 in words is "one billion, two hundred eleven million, two hundred thirty thousand, one hundred four".