1241312121 has 40 divisors (see below), whose sum is σ = 2122243200. Its totient is φ = 708305472.

The previous prime is 1241312113. The next prime is 1241312131. The reversal of 1241312121 is 1212131421.

It is not a de Polignac number, because 1241312121 - 2³ = 1241312113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1241312094 and 1241312103.

It is not an unprimeable number, because it can be changed into a prime (1241312101) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 593740 + ... + 595826.

It is an arithmetic number, because the mean of its divisors is an integer number (53056080).

Almost surely, 2^1241312121 is an apocalyptic number.

It is an amenable number.

1241312121 is a deficient number, since it is larger than the sum of its proper divisors (880931079).

1241312121 is a wasteful number, since it uses less digits than its factorization.

1241312121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155 (or 3146 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 1241312121 is about 35232.2596635527. The cubic root of 1241312121 is about 1074.7158783297.

Adding to 1241312121 its reverse (1212131421), we get a palindrome (2453443542).

The spelling of 1241312121 in words is "one billion, two hundred forty-one million, three hundred twelve thousand, one hundred twenty-one".