311212130 has 16 divisors (see below), whose sum is σ = 561173184. Its totient is φ = 124264560.

The previous prime is 311212127. The next prime is 311212133. The reversal of 311212130 is 31212113.

311212130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (311212127) and next prime (311212133).

It is not an unprimeable number, because it can be changed into a prime (311212133) 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, 21542 + ... + 32961.

It is an arithmetic number, because the mean of its divisors is an integer number (35073324).

Almost surely, 2^311212130 is an apocalyptic number.

311212130 is a deficient number, since it is larger than the sum of its proper divisors (249961054).

311212130 is a wasteful number, since it uses less digits than its factorization.

311212130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55081.

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

The square root of 311212130 is about 17641.2054576778. The cubic root of 311212130 is about 677.6709027239.

Adding to 311212130 its reverse (31212113), we get a palindrome (342424243).

The spelling of 311212130 in words is "three hundred eleven million, two hundred twelve thousand, one hundred thirty".