131212241000004 has 24 divisors (see below), whose sum is σ = 316038085850368. Its totient is φ = 42326529354720.

The previous prime is 131212240999997. The next prime is 131212241000023. The reversal of 131212241000004 is 400000142212131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176360538607 + ... + 176360539350.

Almost surely, 2^{131212241000004} is an apocalyptic number.

It is an amenable number.

131212241000004 is an abundant number, since it is smaller than the sum of its proper divisors (184825844850364).

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

131212241000004 is a wasteful number, since it uses less digits than its factorization.

131212241000004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352721077995 (or 352721077993 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 131212241000004 its reverse (400000142212131), we get a palindrome (531212383212135).

The spelling of 131212241000004 in words is "one hundred thirty-one trillion, two hundred twelve billion, two hundred forty-one million, four", and thus it is an aban number.