1241031211551 has 6 divisors (see below), whose sum is σ = 1792600638920. Its totient is φ = 827354141028.

The previous prime is 1241031211547. The next prime is 1241031211571. The reversal of 1241031211551 is 1551121301421.

1241031211551 is a `hidden beast` number, since 1 + 2 + 4 + 103 + 1 + 2 + 1 + 1 + 551 = 666.

It is not a de Polignac number, because 1241031211551 - 2² = 1241031211547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241031211531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68946178411 + ... + 68946178428.

Almost surely, 2^{1241031211551} is an apocalyptic number.

1241031211551 is a deficient number, since it is larger than the sum of its proper divisors (551569427369).

1241031211551 is a wasteful number, since it uses less digits than its factorization.

1241031211551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137892356845 (or 137892356842 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

Adding to 1241031211551 its reverse (1551121301421), we get a palindrome (2792152512972).

The spelling of 1241031211551 in words is "one trillion, two hundred forty-one billion, thirty-one million, two hundred eleven thousand, five hundred fifty-one".