31124142330 has 64 divisors (see below), whose sum is σ = 75100296960. Its totient is φ = 8255146496.

The previous prime is 31124142319. The next prime is 31124142331. The reversal of 31124142330 is 3324142113.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31124142330.

It is not an unprimeable number, because it can be changed into a prime (31124142331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8588899 + ... + 8592521.

It is an arithmetic number, because the mean of its divisors is an integer number (1173442140).

Almost surely, 2^31124142330 is an apocalyptic number.

31124142330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31124142330 is an abundant number, since it is smaller than the sum of its proper divisors (43976154630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31124142330 is a wasteful number, since it uses less digits than its factorization.

31124142330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5095.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31124142330 its reverse (3324142113), we get a palindrome (34448284443).

The spelling of 31124142330 in words is "thirty-one billion, one hundred twenty-four million, one hundred forty-two thousand, three hundred thirty".