43020680312381 has 4 divisors (see below), whose sum is σ = 43020693903264. Its totient is φ = 43020666721500.

The previous prime is 43020680312287. The next prime is 43020680312411. The reversal of 43020680312381 is 18321308602034.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43020680312381 is a prime.

It is a super-2 number, since 2×43020680312381² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43020680312681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732386 + ... + 9304716.

It is an arithmetic number, because the mean of its divisors is an integer number (10755173475816).

Almost surely, 2^{43020680312381} is an apocalyptic number.

It is an amenable number.

43020680312381 is a deficient number, since it is larger than the sum of its proper divisors (13590883).

43020680312381 is an equidigital number, since it uses as much as digits as its factorization.

43020680312381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13590882.

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 43020680312381 in words is "forty-three trillion, twenty billion, six hundred eighty million, three hundred twelve thousand, three hundred eighty-one".