2103121412 has 24 divisors (see below), whose sum is σ = 4351287360. Its totient is φ = 870256800.

The previous prime is 2103121409. The next prime is 2103121429. The reversal of 2103121412 is 2141213012.

It is a super-2 number, since 2×2103121412² = 8846239347225747488, which contains 22 as substring.

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, 1294214 + ... + 1295837.

It is an arithmetic number, because the mean of its divisors is an integer number (181303640).

Almost surely, 2^2103121412 is an apocalyptic number.

It is an amenable number.

2103121412 is an abundant number, since it is smaller than the sum of its proper divisors (2248165948).

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

2103121412 is a wasteful number, since it uses less digits than its factorization.

2103121412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590091 (or 2590089 counting only the distinct ones).

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

The square root of 2103121412 is about 45859.8017003999. The cubic root of 2103121412 is about 1281.2133294855.

Adding to 2103121412 its reverse (2141213012), we get a palindrome (4244334424).

The spelling of 2103121412 in words is "two billion, one hundred three million, one hundred twenty-one thousand, four hundred twelve".