42151211331 has 4 divisors (see below), whose sum is σ = 56201615112. Its totient is φ = 28100807552.

The previous prime is 42151211329. The next prime is 42151211341. The reversal of 42151211331 is 13311215124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42151211331 - 2¹ = 42151211329 is a prime.

It is a super-2 number, since 2×42151211331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42151211341) 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, 7025201886 + ... + 7025201891.

It is an arithmetic number, because the mean of its divisors is an integer number (14050403778).

Almost surely, 2^42151211331 is an apocalyptic number.

42151211331 is a deficient number, since it is larger than the sum of its proper divisors (14050403781).

42151211331 is a wasteful number, since it uses less digits than its factorization.

42151211331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14050403780.

The product of its digits is 720, while the sum is 24.

Adding to 42151211331 its reverse (13311215124), we get a palindrome (55462426455).

The spelling of 42151211331 in words is "forty-two billion, one hundred fifty-one million, two hundred eleven thousand, three hundred thirty-one".