1301405500421 has 24 divisors (see below), whose sum is σ = 1440772941384. Its totient is φ = 1168540369920.

The previous prime is 1301405500399. The next prime is 1301405500453. The reversal of 1301405500421 is 1240055041031.

It can be written as a sum of positive squares in 12 ways, for example, as 38679088900 + 1262726411521 = 196670^2 + 1123711^2 .

It is not a de Polignac number, because 1301405500421 - 2¹⁰ = 1301405499397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301405500621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108075161 + ... + 108087201.

It is an arithmetic number, because the mean of its divisors is an integer number (60032205891).

Almost surely, 2^{1301405500421} is an apocalyptic number.

It is an amenable number.

1301405500421 is a deficient number, since it is larger than the sum of its proper divisors (139367440963).

1301405500421 is a wasteful number, since it uses less digits than its factorization.

1301405500421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18201 (or 18164 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 1301405500421 in words is "one trillion, three hundred one billion, four hundred five million, five hundred thousand, four hundred twenty-one".