1312106181 has 16 divisors (see below), whose sum is σ = 1779298560. Its totient is φ = 859921920.

The previous prime is 1312106137. The next prime is 1312106233. The reversal of 1312106181 is 1816012131.

It is not a de Polignac number, because 1312106181 - 2¹³ = 1312097989 is a prime.

It is a super-2 number, since 2×1312106181² = 3443245260436809522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312106101) 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, 43341 + ... + 67101.

It is an arithmetic number, because the mean of its divisors is an integer number (111206160).

Almost surely, 2^1312106181 is an apocalyptic number.

It is an amenable number.

1312106181 is a deficient number, since it is larger than the sum of its proper divisors (467192379).

1312106181 is a wasteful number, since it uses less digits than its factorization.

1312106181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24076.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 1312106181 is about 36223.0062391293. The cubic root of 1312106181 is about 1094.7702668525.

The spelling of 1312106181 in words is "one billion, three hundred twelve million, one hundred six thousand, one hundred eighty-one".