131230123213 has 16 divisors (see below), whose sum is σ = 156680386560. Its totient is φ = 107467032816.

The previous prime is 131230123183. The next prime is 131230123217. The reversal of 131230123213 is 312321032131.

It is a cyclic number.

It is not a de Polignac number, because 131230123213 - 2⁵ = 131230123181 is a prime.

It is a super-2 number, since 2×131230123213² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131230123217) 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, 336145 + ... + 612742.

It is an arithmetic number, because the mean of its divisors is an integer number (9792524160).

Almost surely, 2^131230123213 is an apocalyptic number.

It is an amenable number.

131230123213 is a deficient number, since it is larger than the sum of its proper divisors (25450263347).

131230123213 is an equidigital number, since it uses as much as digits as its factorization.

131230123213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949776.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 131230123213 its reverse (312321032131), we get a palindrome (443551155344).

The spelling of 131230123213 in words is "one hundred thirty-one billion, two hundred thirty million, one hundred twenty-three thousand, two hundred thirteen".