1201331102331 has 32 divisors (see below), whose sum is σ = 1625666518080. Its totient is φ = 789050013696.

The previous prime is 1201331102281. The next prime is 1201331102381. The reversal of 1201331102331 is 1332011331021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1201331102281) and next prime (1201331102381).

It is not a de Polignac number, because 1201331102331 - 2¹¹ = 1201331100283 is a prime.

It is a super-2 number, since 2×1201331102331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1201331102298 and 1201331102307.

It is not an unprimeable number, because it can be changed into a prime (1201331102381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33097365 + ... + 33133641.

It is an arithmetic number, because the mean of its divisors is an integer number (50802078690).

Almost surely, 2^{1201331102331} is an apocalyptic number.

1201331102331 is a deficient number, since it is larger than the sum of its proper divisors (424335415749).

1201331102331 is a wasteful number, since it uses less digits than its factorization.

1201331102331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37023.

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

Adding to 1201331102331 its reverse (1332011331021), we get a palindrome (2533342433352).

The spelling of 1201331102331 in words is "one trillion, two hundred one billion, three hundred thirty-one million, one hundred two thousand, three hundred thirty-one".