42035531021355 has 128 divisors (see below), whose sum is σ = 71341866086400. Its totient is φ = 21076269465600.

The previous prime is 42035531021251. The next prime is 42035531021369. The reversal of 42035531021355 is 55312013553024.

It is not a de Polignac number, because 42035531021355 - 2⁷ = 42035531021227 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 40457680926 + ... + 40457681964.

It is an arithmetic number, because the mean of its divisors is an integer number (557358328800).

Almost surely, 2^{42035531021355} is an apocalyptic number.

42035531021355 is a deficient number, since it is larger than the sum of its proper divisors (29306335065045).

42035531021355 is a wasteful number, since it uses less digits than its factorization.

42035531021355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885.

The product of its (nonzero) digits is 270000, while the sum is 39.

Adding to 42035531021355 its reverse (55312013553024), we get a palindrome (97347544574379).

The spelling of 42035531021355 in words is "forty-two trillion, thirty-five billion, five hundred thirty-one million, twenty-one thousand, three hundred fifty-five".