1105213021504 has 28 divisors (see below), whose sum is σ = 2212565573844. Its totient is φ = 547716184064.

The previous prime is 1105213021499. The next prime is 1105213021529. The reversal of 1105213021504 is 4051203125011.

It can be written as a sum of positive squares in 2 ways, for example, as 104716960000 + 1000496061504 = 323600^2 + 1000248^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76404067 + ... + 76418530.

Almost surely, 2^{1105213021504} is an apocalyptic number.

It is an amenable number.

1105213021504 is an abundant number, since it is smaller than the sum of its proper divisors (1107352552340).

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

1105213021504 is a wasteful number, since it uses less digits than its factorization.

1105213021504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152822722 (or 152822712 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 1105213021504 its reverse (4051203125011), we get a palindrome (5156416146515).

The spelling of 1105213021504 in words is "one trillion, one hundred five billion, two hundred thirteen million, twenty-one thousand, five hundred four".