1241213540511 has 16 divisors (see below), whose sum is σ = 1902976534784. Its totient is φ = 704913560064.

The previous prime is 1241213540459. The next prime is 1241213540551. The reversal of 1241213540511 is 1150453121421.

It is not a de Polignac number, because 1241213540511 - 2¹⁷ = 1241213409439 is a prime.

It is a super-2 number, since 2×1241213540511² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241213540551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181301506 + ... + 181308351.

It is an arithmetic number, because the mean of its divisors is an integer number (118936033424).

Almost surely, 2^{1241213540511} is an apocalyptic number.

1241213540511 is a deficient number, since it is larger than the sum of its proper divisors (661762994273).

1241213540511 is a wasteful number, since it uses less digits than its factorization.

1241213540511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362610030.

The product of its (nonzero) digits is 4800, while the sum is 30.

Adding to 1241213540511 its reverse (1150453121421), we get a palindrome (2391666661932).

The spelling of 1241213540511 in words is "one trillion, two hundred forty-one billion, two hundred thirteen million, five hundred forty thousand, five hundred eleven".