1043440101 has 24 divisors (see below), whose sum is σ = 1645883616. Its totient is φ = 631743840.

The previous prime is 1043440051. The next prime is 1043440109. The reversal of 1043440101 is 1010443401.

It is not a de Polignac number, because 1043440101 - 2¹⁵ = 1043407333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043440109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103386 + ... + 113028.

It is an arithmetic number, because the mean of its divisors is an integer number (68578484).

Almost surely, 2^1043440101 is an apocalyptic number.

1043440101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1043440101 is a deficient number, since it is larger than the sum of its proper divisors (602443515).

1043440101 is a wasteful number, since it uses less digits than its factorization.

1043440101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10753 (or 10750 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1043440101 is about 32302.3234613240. The cubic root of 1043440101 is about 1014.2752803482.

Adding to 1043440101 its reverse (1010443401), we get a palindrome (2053883502).

It can be divided in two parts, 1043 and 440101, that added together give a palindrome (441144).

The spelling of 1043440101 in words is "one billion, forty-three million, four hundred forty thousand, one hundred one".