31133331130 has 16 divisors (see below), whose sum is σ = 61134541344. Its totient is φ = 11321211280.

The previous prime is 31133331113. The next prime is 31133331137. The reversal of 31133331130 is 3113333113.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (31133331137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141515032 + ... + 141515251.

It is an arithmetic number, because the mean of its divisors is an integer number (3820908834).

Almost surely, 2^31133331130 is an apocalyptic number.

31133331130 is a deficient number, since it is larger than the sum of its proper divisors (30001210214).

31133331130 is a wasteful number, since it uses less digits than its factorization.

31133331130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283030301.

The product of its (nonzero) digits is 729, while the sum is 22.

Adding to 31133331130 its reverse (3113333113), we get a palindrome (34246664243).

It can be divided in two parts, 31133 and 331130, that added together give a palindrome (362263).

The spelling of 31133331130 in words is "thirty-one billion, one hundred thirty-three million, three hundred thirty-one thousand, one hundred thirty".