1081004013 has 12 divisors (see below), whose sum is σ = 1564091100. Its totient is φ = 719450496.

The previous prime is 1081004011. The next prime is 1081004051. The reversal of 1081004013 is 3104001801.

It can be written as a sum of positive squares in 2 ways, for example, as 953697924 + 127306089 = 30882^2 + 11283^2 .

It is not a de Polignac number, because 1081004013 - 2¹ = 1081004011 is a prime.

It is a super-2 number, since 2×1081004013² = 2337139352244208338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081004011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95938 + ... + 106611.

It is an arithmetic number, because the mean of its divisors is an integer number (130340925).

Almost surely, 2^1081004013 is an apocalyptic number.

It is an amenable number.

1081004013 is a deficient number, since it is larger than the sum of its proper divisors (483087087).

1081004013 is a wasteful number, since it uses less digits than its factorization.

1081004013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203148 (or 203145 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1081004013 is about 32878.6254730942. The cubic root of 1081004013 is about 1026.3034025134.

Adding to 1081004013 its reverse (3104001801), we get a palindrome (4185005814).

The spelling of 1081004013 in words is "one billion, eighty-one million, four thousand, thirteen".