42072311 has 2 divisors, whose sum is σ = 42072312. Its totient is φ = 42072310.

The previous prime is 42072281. The next prime is 42072341. The reversal of 42072311 is 11327024.

It is a balanced prime because it is at equal distance from previous prime (42072281) and next prime (42072341).

It is a cyclic number.

It is not a de Polignac number, because 42072311 - 2²² = 37878007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42072341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21036155 + 21036156.

It is an arithmetic number, because the mean of its divisors is an integer number (21036156).

Almost surely, 2^42072311 is an apocalyptic number.

42072311 is a deficient number, since it is larger than the sum of its proper divisors (1).

42072311 is an equidigital number, since it uses as much as digits as its factorization.

42072311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 42072311 is about 6486.3172139512. The cubic root of 42072311 is about 347.8020381781.

Adding to 42072311 its reverse (11327024), we get a palindrome (53399335).

The spelling of 42072311 in words is "forty-two million, seventy-two thousand, three hundred eleven".