31542135011 has 8 divisors (see below), whose sum is σ = 33211652880. Its totient is φ = 29873557728.

The previous prime is 31542135007. The next prime is 31542135017. The reversal of 31542135011 is 11053124513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31542135011 - 2² = 31542135007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31542135017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165776 + ... + 300941.

It is an arithmetic number, because the mean of its divisors is an integer number (4151456610).

Almost surely, 2^31542135011 is an apocalyptic number.

31542135011 is a deficient number, since it is larger than the sum of its proper divisors (1669517869).

31542135011 is a wasteful number, since it uses less digits than its factorization.

31542135011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470293.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 31542135011 its reverse (11053124513), we get a palindrome (42595259524).

The spelling of 31542135011 in words is "thirty-one billion, five hundred forty-two million, one hundred thirty-five thousand, eleven".