1241220331 has 12 divisors (see below), whose sum is σ = 1345320840. Its totient is φ = 1144653120.

The previous prime is 1241220313. The next prime is 1241220361. The reversal of 1241220331 is 1330221421.

It is a happy number.

It is not a de Polignac number, because 1241220331 - 2⁷ = 1241220203 is a prime.

It is a super-2 number, since 2×1241220331² = 3081255820175499122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1241220299 and 1241220308.

It is not an unprimeable number, because it can be changed into a prime (1241220301) 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, 215335 + ... + 221023.

It is an arithmetic number, because the mean of its divisors is an integer number (112110070).

Almost surely, 2^1241220331 is an apocalyptic number.

1241220331 is a deficient number, since it is larger than the sum of its proper divisors (104100509).

1241220331 is a wasteful number, since it uses less digits than its factorization.

1241220331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7006 (or 6993 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1241220331 is about 35230.9569980720. The cubic root of 1241220331 is about 1074.6893873824.

Adding to 1241220331 its reverse (1330221421), we get a palindrome (2571441752).

The spelling of 1241220331 in words is "one billion, two hundred forty-one million, two hundred twenty thousand, three hundred thirty-one".