1020201045 has 16 divisors (see below), whose sum is σ = 1633753152. Its totient is φ = 543630080.

The previous prime is 1020201043. The next prime is 1020201053. The reversal of 1020201045 is 5401020201.

1020201045 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 1020201045 - 2¹ = 1020201043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020201043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11796 + ... + 46685.

It is an arithmetic number, because the mean of its divisors is an integer number (102109572).

Almost surely, 2^1020201045 is an apocalyptic number.

1020201045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1020201045 is a deficient number, since it is larger than the sum of its proper divisors (613552107).

1020201045 is a wasteful number, since it uses less digits than its factorization.

1020201045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59652.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1020201045 is about 31940.5861718285. The cubic root of 1020201045 is about 1006.6888413143.

Adding to 1020201045 its reverse (5401020201), we get a palindrome (6421221246).

The spelling of 1020201045 in words is "one billion, twenty million, two hundred one thousand, forty-five".