1020113043 has 8 divisors (see below), whose sum is σ = 1419287808. Its totient is φ = 650506824.

The previous prime is 1020112981. The next prime is 1020113047. The reversal of 1020113043 is 3403110201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1020113043 - 2⁶ = 1020112979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020113047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7392055 + ... + 7392192.

It is an arithmetic number, because the mean of its divisors is an integer number (177410976).

Almost surely, 2^1020113043 is an apocalyptic number.

1020113043 is a deficient number, since it is larger than the sum of its proper divisors (399174765).

1020113043 is a wasteful number, since it uses less digits than its factorization.

1020113043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14784273.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1020113043 is about 31939.2085531248. The cubic root of 1020113043 is about 1006.6598950005.

Adding to 1020113043 its reverse (3403110201), we get a palindrome (4423223244).

The spelling of 1020113043 in words is "one billion, twenty million, one hundred thirteen thousand, forty-three".