31212344010 has 32 divisors (see below), whose sum is σ = 75071450880. Its totient is φ = 8305311168.

The previous prime is 31212343949. The next prime is 31212344047. The reversal of 31212344010 is 1044321213.

It is a super-3 number, since 3×31212344010³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1109665 + ... + 1137444.

It is an arithmetic number, because the mean of its divisors is an integer number (2345982840).

Almost surely, 2^31212344010 is an apocalyptic number.

31212344010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31212344010 is an abundant number, since it is smaller than the sum of its proper divisors (43859106870).

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

31212344010 is a wasteful number, since it uses less digits than its factorization.

31212344010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247582.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31212344010 its reverse (1044321213), we get a palindrome (32256665223).

The spelling of 31212344010 in words is "thirty-one billion, two hundred twelve million, three hundred forty-four thousand, ten".