1243202201241 has 128 divisors (see below), whose sum is σ = 2289633755136. Its totient is φ = 579042017280.

The previous prime is 1243202201231. The next prime is 1243202201243. The reversal of 1243202201241 is 1421022023421.

It is not a de Polignac number, because 1243202201241 - 2¹⁵ = 1243202168473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1243202201243) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 67435161 + ... + 67453593.

It is an arithmetic number, because the mean of its divisors is an integer number (17887763712).

Almost surely, 2^{1243202201241} is an apocalyptic number.

1243202201241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1243202201241 is a deficient number, since it is larger than the sum of its proper divisors (1046431553895).

1243202201241 is a wasteful number, since it uses less digits than its factorization.

1243202201241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19111.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1243202201241 its reverse (1421022023421), we get a palindrome (2664224224662).

The spelling of 1243202201241 in words is "one trillion, two hundred forty-three billion, two hundred two million, two hundred one thousand, two hundred forty-one".