1020135505445 has 16 divisors (see below), whose sum is σ = 1410059071488. Its totient is φ = 694013443200.

The previous prime is 1020135505427. The next prime is 1020135505471. The reversal of 1020135505445 is 5445055310201.

1020135505445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1020135505445 - 2⁶ = 1020135505381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

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, 114746456 + ... + 114755345.

It is an arithmetic number, because the mean of its divisors is an integer number (88128691968).

Almost surely, 2^{1020135505445} is an apocalyptic number.

It is an amenable number.

1020135505445 is a deficient number, since it is larger than the sum of its proper divisors (389923566043).

1020135505445 is a wasteful number, since it uses less digits than its factorization.

1020135505445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229501940.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 1020135505445 in words is "one trillion, twenty billion, one hundred thirty-five million, five hundred five thousand, four hundred forty-five".