1201312103331 has 16 divisors (see below), whose sum is σ = 1721283018624. Its totient is φ = 742514239104.

The previous prime is 1201312103293. The next prime is 1201312103339. The reversal of 1201312103331 is 1333012131021.

It is a happy number.

It is not a de Polignac number, because 1201312103331 - 2⁷ = 1201312103203 is a prime.

It is a super-2 number, since 2×1201312103331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1201312103298 and 1201312103307.

It is not an unprimeable number, because it can be changed into a prime (1201312103339) 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, 175781205 + ... + 175788038.

It is an arithmetic number, because the mean of its divisors is an integer number (107580188664).

Almost surely, 2^{1201312103331} is an apocalyptic number.

1201312103331 is a deficient number, since it is larger than the sum of its proper divisors (519970915293).

1201312103331 is a wasteful number, since it uses less digits than its factorization.

1201312103331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351569330.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1201312103331 its reverse (1333012131021), we get a palindrome (2534324234352).

The spelling of 1201312103331 in words is "one trillion, two hundred one billion, three hundred twelve million, one hundred three thousand, three hundred thirty-one".