1020201110331 has 16 divisors (see below), whose sum is σ = 1498971699456. Its totient is φ = 613215693216.

The previous prime is 1020201110317. The next prime is 1020201110359. The reversal of 1020201110331 is 1330111020201.

It is a happy number.

It is not a de Polignac number, because 1020201110331 - 2⁹ = 1020201109819 is a prime.

It is a super-2 number, since 2×1020201110331² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1020201110331.

It is not an unprimeable number, because it can be changed into a prime (1020201110381) 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, 304172775 + ... + 304176128.

It is an arithmetic number, because the mean of its divisors is an integer number (93685731216).

Almost surely, 2^{1020201110331} is an apocalyptic number.

1020201110331 is a deficient number, since it is larger than the sum of its proper divisors (478770589125).

1020201110331 is a wasteful number, since it uses less digits than its factorization.

1020201110331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608348962.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1020201110331 its reverse (1330111020201), we get a palindrome (2350312130532).

The spelling of 1020201110331 in words is "one trillion, twenty billion, two hundred one million, one hundred ten thousand, three hundred thirty-one".