31133420234 has 16 divisors (see below), whose sum is σ = 53490456000. Its totient is φ = 13313174784.

The previous prime is 31133420231. The next prime is 31133420239. The reversal of 31133420234 is 43202433113.

It is a super-3 number, since 3×31133420234³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (31133420231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2470124 + ... + 2482695.

It is an arithmetic number, because the mean of its divisors is an integer number (3343153500).

Almost surely, 2^31133420234 is an apocalyptic number.

31133420234 is a deficient number, since it is larger than the sum of its proper divisors (22357035766).

31133420234 is a wasteful number, since it uses less digits than its factorization.

31133420234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4953277.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 31133420234 its reverse (43202433113), we get a palindrome (74335853347).

The spelling of 31133420234 in words is "thirty-one billion, one hundred thirty-three million, four hundred twenty thousand, two hundred thirty-four".