12131010 has 24 divisors (see below), whose sum is σ = 31540860. Its totient is φ = 3234912.

The previous prime is 12130999. The next prime is 12131017. The reversal of 12131010 is 1013121.

It can be written as a sum of positive squares in 2 ways, for example, as 11108889 + 1022121 = 3333^2 + 1011^2 .

It is a super-2 number, since 2×12131010² = 294322807240200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12130983 and 12131001.

It is not an unprimeable number, because it can be changed into a prime (12131017) 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, 67305 + ... + 67484.

Almost surely, 2^12131010 is an apocalyptic number.

12131010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12131010 is an abundant number, since it is smaller than the sum of its proper divisors (19409850).

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

12131010 is a wasteful number, since it uses less digits than its factorization.

12131010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134802 (or 134799 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 12131010 is about 3482.9599480901. The cubic root of 12131010 is about 229.7729959383.

Adding to 12131010 its reverse (1013121), we get a palindrome (13144131).

The spelling of 12131010 in words is "twelve million, one hundred thirty-one thousand, ten".