103440134311321 has 16 divisors (see below), whose sum is σ = 107829736560000. Its totient is φ = 99106083691776.

The previous prime is 103440134311309. The next prime is 103440134311399. The reversal of 103440134311321 is 123113431044301.

It is a cyclic number.

It is not a de Polignac number, because 103440134311321 - 2⁹ = 103440134310809 is a prime.

It is a super-2 number, since 2×103440134311321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103440134312321) 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, 1926625 + ... + 14511793.

It is an arithmetic number, because the mean of its divisors is an integer number (6739358535000).

Almost surely, 2^{103440134311321} is an apocalyptic number.

It is an amenable number.

103440134311321 is a deficient number, since it is larger than the sum of its proper divisors (4389602248679).

103440134311321 is a wasteful number, since it uses less digits than its factorization.

103440134311321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12587376.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 103440134311321 its reverse (123113431044301), we get a palindrome (226553565355622).

The spelling of 103440134311321 in words is "one hundred three trillion, four hundred forty billion, one hundred thirty-four million, three hundred eleven thousand, three hundred twenty-one".