31542243411 has 16 divisors (see below), whose sum is σ = 50891687424. Its totient is φ = 16963895424.

The previous prime is 31542243391. The next prime is 31542243427. The reversal of 31542243411 is 11434224513.

It is not a de Polignac number, because 31542243411 - 2¹¹ = 31542241363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31542243911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44176455 + ... + 44177168.

It is an arithmetic number, because the mean of its divisors is an integer number (3180730464).

Almost surely, 2^31542243411 is an apocalyptic number.

31542243411 is a deficient number, since it is larger than the sum of its proper divisors (19349444013).

31542243411 is a wasteful number, since it uses less digits than its factorization.

31542243411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88353650.

The product of its digits is 11520, while the sum is 30.

Adding to 31542243411 its reverse (11434224513), we get a palindrome (42976467924).

The spelling of 31542243411 in words is "thirty-one billion, five hundred forty-two million, two hundred forty-three thousand, four hundred eleven".