43121013141319 has 2 divisors, whose sum is σ = 43121013141320. Its totient is φ = 43121013141318.

The previous prime is 43121013141293. The next prime is 43121013141331. The reversal of 43121013141319 is 91314131012134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43121013141319 - 2⁷ = 43121013141191 is a prime.

It is a super-2 number, since 2×43121013141319² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43121013147319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21560506570659 + 21560506570660.

It is an arithmetic number, because the mean of its divisors is an integer number (21560506570660).

Almost surely, 2^{43121013141319} is an apocalyptic number.

43121013141319 is a deficient number, since it is larger than the sum of its proper divisors (1).

43121013141319 is an equidigital number, since it uses as much as digits as its factorization.

43121013141319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 43121013141319 in words is "forty-three trillion, one hundred twenty-one billion, thirteen million, one hundred forty-one thousand, three hundred nineteen".