31024140243 has 16 divisors (see below), whose sum is σ = 42207301536. Its totient is φ = 20264509440.

The previous prime is 31024140241. The next prime is 31024140271. The reversal of 31024140243 is 34204142013.

It is not a de Polignac number, because 31024140243 - 2¹ = 31024140241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31024140241) 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, 282796 + ... + 376857.

It is an arithmetic number, because the mean of its divisors is an integer number (2637956346).

Almost surely, 2^31024140243 is an apocalyptic number.

31024140243 is a deficient number, since it is larger than the sum of its proper divisors (11183161293).

31024140243 is a wasteful number, since it uses less digits than its factorization.

31024140243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659974.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 31024140243 its reverse (34204142013), we get a palindrome (65228282256).

The spelling of 31024140243 in words is "thirty-one billion, twenty-four million, one hundred forty thousand, two hundred forty-three".