1101252320545 has 16 divisors (see below), whose sum is σ = 1423265038272. Its totient is φ = 813170658240.

The previous prime is 1101252320537. The next prime is 1101252320599. The reversal of 1101252320545 is 5450232521011.

It is not a de Polignac number, because 1101252320545 - 2³ = 1101252320537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226554 + ... + 1501276.

It is an arithmetic number, because the mean of its divisors is an integer number (88954064892).

Almost surely, 2^{1101252320545} is an apocalyptic number.

It is an amenable number.

1101252320545 is a deficient number, since it is larger than the sum of its proper divisors (322012717727).

1101252320545 is a wasteful number, since it uses less digits than its factorization.

1101252320545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288032.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 1101252320545 its reverse (5450232521011), we get a palindrome (6551484841556).

The spelling of 1101252320545 in words is "one trillion, one hundred one billion, two hundred fifty-two million, three hundred twenty thousand, five hundred forty-five".