1101278278045 has 16 divisors (see below), whose sum is σ = 1480637530368. Its totient is φ = 779282907840.

The previous prime is 1101278278039. The next prime is 1101278278063. The reversal of 1101278278045 is 5408728721011.

It is not a de Polignac number, because 1101278278045 - 2³¹ = 1099130794397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101278277986 and 1101278278004.

It is a congruent 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, 270582309 + ... + 270586378.

It is an arithmetic number, because the mean of its divisors is an integer number (92539845648).

Almost surely, 2^{1101278278045} is an apocalyptic number.

It is an amenable number.

1101278278045 is a deficient number, since it is larger than the sum of its proper divisors (379359252323).

1101278278045 is a wasteful number, since it uses less digits than its factorization.

1101278278045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541168740.

The product of its (nonzero) digits is 250880, while the sum is 46.

The spelling of 1101278278045 in words is "one trillion, one hundred one billion, two hundred seventy-eight million, two hundred seventy-eight thousand, forty-five".