1540013023103 has 8 divisors (see below), whose sum is σ = 1701497765088. Its totient is φ = 1386405585664.

The previous prime is 1540013023037. The next prime is 1540013023151. The reversal of 1540013023103 is 3013203100451.

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

It is a cyclic number.

It is not a de Polignac number, because 1540013023103 - 2¹² = 1540013019007 is a prime.

It is a super-2 number, since 2×1540013023103² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540013023403) 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, 1969325726 + ... + 1969326507.

It is an arithmetic number, because the mean of its divisors is an integer number (212687220636).

Almost surely, 2^{1540013023103} is an apocalyptic number.

1540013023103 is a deficient number, since it is larger than the sum of its proper divisors (161484741985).

1540013023103 is a wasteful number, since it uses less digits than its factorization.

1540013023103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3938652273.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 1540013023103 its reverse (3013203100451), we get a palindrome (4553216123554).

The spelling of 1540013023103 in words is "one trillion, five hundred forty billion, thirteen million, twenty-three thousand, one hundred three".