1310212111 has 12 divisors (see below), whose sum is σ = 1424469592. Its totient is φ = 1197987408.

The previous prime is 1310212087. The next prime is 1310212129. The reversal of 1310212111 is 1112120131.

It is a happy number.

It is not a de Polignac number, because 1310212111 - 2⁷ = 1310211983 is a prime.

It is a super-2 number, since 2×1310212111² = 3433311551622152642, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1310212091 and 1310212100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310213111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144436 + ... + 153238.

Almost surely, 2^1310212111 is an apocalyptic number.

1310212111 is a deficient number, since it is larger than the sum of its proper divisors (114257481).

1310212111 is an equidigital number, since it uses as much as digits as its factorization.

1310212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9030 (or 8923 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1310212111 is about 36196.8522250209. The cubic root of 1310212111 is about 1094.2432337746.

Adding to 1310212111 its reverse (1112120131), we get a palindrome (2422332242).

The spelling of 1310212111 in words is "one billion, three hundred ten million, two hundred twelve thousand, one hundred eleven".