1023113131203 has 16 divisors (see below), whose sum is σ = 1442387502080. Its totient is φ = 643279053024.

The previous prime is 1023113131177. The next prime is 1023113131217. The reversal of 1023113131203 is 3021313113201.

It is a happy number.

It is not a de Polignac number, because 1023113131203 - 2¹⁴ = 1023113114819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1023113131203.

It is not an unprimeable number, because it can be changed into a prime (1023113131223) 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, 40232476 + ... + 40257897.

It is an arithmetic number, because the mean of its divisors is an integer number (90149218880).

Almost surely, 2^{1023113131203} is an apocalyptic number.

1023113131203 is a deficient number, since it is larger than the sum of its proper divisors (419274370877).

1023113131203 is a wasteful number, since it uses less digits than its factorization.

1023113131203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80490618.

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

Adding to 1023113131203 its reverse (3021313113201), we get a palindrome (4044426244404).

The spelling of 1023113131203 in words is "one trillion, twenty-three billion, one hundred thirteen million, one hundred thirty-one thousand, two hundred three".