31300101212 has 48 divisors (see below), whose sum is σ = 57974518560. Its totient is φ = 14745224448.

The previous prime is 31300101211. The next prime is 31300101221. The reversal of 31300101212 is 21210100313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31300101211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13649138 + ... + 13651430.

It is an arithmetic number, because the mean of its divisors is an integer number (1207802470).

Almost surely, 2^31300101212 is an apocalyptic number.

It is an amenable number.

31300101212 is a deficient number, since it is larger than the sum of its proper divisors (26674417348).

31300101212 is a wasteful number, since it uses less digits than its factorization.

31300101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222 (or 3220 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 31300101212 its reverse (21210100313), we get a palindrome (52510201525).

It can be divided in two parts, 31300101 and 212, that added together give a palindrome (31300313).

The spelling of 31300101212 in words is "thirty-one billion, three hundred million, one hundred one thousand, two hundred twelve".