31220041234 has 16 divisors (see below), whose sum is σ = 48462439320. Its totient is φ = 15066284800.

The previous prime is 31220041217. The next prime is 31220041243. The reversal of 31220041234 is 43214002213.

It can be written as a sum of positive squares in 4 ways, for example, as 21329142025 + 9890899209 = 146045^2 + 99453^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66372 + ... + 258544.

Almost surely, 2^31220041234 is an apocalyptic number.

31220041234 is a deficient number, since it is larger than the sum of its proper divisors (17242398086).

31220041234 is a wasteful number, since it uses less digits than its factorization.

31220041234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195005.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31220041234 its reverse (43214002213), we get a palindrome (74434043447).

The spelling of 31220041234 in words is "thirty-one billion, two hundred twenty million, forty-one thousand, two hundred thirty-four".