1241520111042 has 16 divisors (see below), whose sum is σ = 2483083438560. Its totient is φ = 413832834272.

The previous prime is 1241520111023. The next prime is 1241520111047. The reversal of 1241520111042 is 2401110251421.

It is a super-2 number, since 2×1241520111042² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1241520111047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1421067 + ... + 2121902.

It is an arithmetic number, because the mean of its divisors is an integer number (155192714910).

Almost surely, 2^{1241520111042} is an apocalyptic number.

1241520111042 is an abundant number, since it is smaller than the sum of its proper divisors (1241563327518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1241520111042 is a wasteful number, since it uses less digits than its factorization.

1241520111042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3601377.

The product of its (nonzero) digits is 640, while the sum is 24.

Adding to 1241520111042 its reverse (2401110251421), we get a palindrome (3642630362463).

The spelling of 1241520111042 in words is "one trillion, two hundred forty-one billion, five hundred twenty million, one hundred eleven thousand, forty-two".