42035531021369 has 2 divisors, whose sum is σ = 42035531021370. Its totient is φ = 42035531021368.

The previous prime is 42035531021251. The next prime is 42035531021377. The reversal of 42035531021369 is 96312013553024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41933330604025 + 102200417344 = 6475595^2 + 319688^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42035531021369 is a prime.

It is a super-2 number, since 2×42035531021369² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42035531021389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21017765510684 + 21017765510685.

It is an arithmetic number, because the mean of its divisors is an integer number (21017765510685).

Almost surely, 2^{42035531021369} is an apocalyptic number.

It is an amenable number.

42035531021369 is a deficient number, since it is larger than the sum of its proper divisors (1).

42035531021369 is an equidigital number, since it uses as much as digits as its factorization.

42035531021369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583200, while the sum is 44.

The spelling of 42035531021369 in words is "forty-two trillion, thirty-five billion, five hundred thirty-one million, twenty-one thousand, three hundred sixty-nine".