1023201020331 has 24 divisors (see below), whose sum is σ = 1691379472640. Its totient is φ = 583895084976.

The previous prime is 1023201020323. The next prime is 1023201020353. The reversal of 1023201020331 is 1330201023201.

1023201020331 is a `hidden beast` number, since 1 + 0 + 2 + 320 + 10 + 2 + 0 + 331 = 666.

It is not a de Polignac number, because 1023201020331 - 2³ = 1023201020323 is a prime.

It is a super-2 number, since 2×1023201020331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023201020311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10942135 + ... + 11035248.

Almost surely, 2^{1023201020331} is an apocalyptic number.

1023201020331 is a deficient number, since it is larger than the sum of its proper divisors (668178452309).

1023201020331 is a wasteful number, since it uses less digits than its factorization.

1023201020331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21978135 (or 21978132 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1023201020331 its reverse (1330201023201), we get a palindrome (2353402043532).

The spelling of 1023201020331 in words is "one trillion, twenty-three billion, two hundred one million, twenty thousand, three hundred thirty-one".