131000121031012 has 6 divisors (see below), whose sum is σ = 229250211804278. Its totient is φ = 65500060515504.

The previous prime is 131000121031001. The next prime is 131000121031033. The reversal of 131000121031012 is 210130121000131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 69127517975616 + 61872603055396 = 8314296^2 + 7865914^2 .

It is a super-2 number, since 2×131000121031012² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16375015128873 + ... + 16375015128880.

Almost surely, 2^{131000121031012} is an apocalyptic number.

It is an amenable number.

131000121031012 is a deficient number, since it is larger than the sum of its proper divisors (98250090773266).

131000121031012 is a wasteful number, since it uses less digits than its factorization.

131000121031012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32750030257757 (or 32750030257755 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 131000121031012 its reverse (210130121000131), we get a palindrome (341130242031143).

The spelling of 131000121031012 in words is "one hundred thirty-one trillion, one hundred twenty-one million, thirty-one thousand, twelve".