1201331012125 has 32 divisors (see below), whose sum is σ = 1596959110656. Its totient is φ = 899114963200.

The previous prime is 1201331012099. The next prime is 1201331012129. The reversal of 1201331012125 is 5212101331021.

It is not a de Polignac number, because 1201331012125 - 2¹⁹ = 1201330487837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201331012096 and 1201331012105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201331012129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1337737 + ... + 2047486.

It is an arithmetic number, because the mean of its divisors is an integer number (49904972208).

Almost surely, 2^{1201331012125} is an apocalyptic number.

It is an amenable number.

1201331012125 is a deficient number, since it is larger than the sum of its proper divisors (395628098531).

1201331012125 is a wasteful number, since it uses less digits than its factorization.

1201331012125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385422 (or 3385412 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 1201331012125 its reverse (5212101331021), we get a palindrome (6413432343146).

The spelling of 1201331012125 in words is "one trillion, two hundred one billion, three hundred thirty-one million, twelve thousand, one hundred twenty-five".