42070405091101 has 2 divisors, whose sum is σ = 42070405091102. Its totient is φ = 42070405091100.

The previous prime is 42070405091087. The next prime is 42070405091159. The reversal of 42070405091101 is 10119050407024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35306769802500 + 6763635288601 = 5941950^2 + 2600699^2 .

It is a cyclic number.

It is not a de Polignac number, because 42070405091101 - 2¹⁵ = 42070405058333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42070405091171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21035202545550 + 21035202545551.

It is an arithmetic number, because the mean of its divisors is an integer number (21035202545551).

Almost surely, 2^{42070405091101} is an apocalyptic number.

It is an amenable number.

42070405091101 is a deficient number, since it is larger than the sum of its proper divisors (1).

42070405091101 is an equidigital number, since it uses as much as digits as its factorization.

42070405091101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

Adding to 42070405091101 its reverse (10119050407024), we get a palindrome (52189455498125).

The spelling of 42070405091101 in words is "forty-two trillion, seventy billion, four hundred five million, ninety-one thousand, one hundred one".