1020203111131 has 8 divisors (see below), whose sum is σ = 1042164440064. Its totient is φ = 998252402280.

The previous prime is 1020203111129. The next prime is 1020203111143. The reversal of 1020203111131 is 1311113020201.

It is a happy number.

1020203111131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020203111131 - 2¹ = 1020203111129 is a prime.

It is a super-2 number, since 2×1020203111131² (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 (1020203111231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2460675 + ... + 2845228.

It is an arithmetic number, because the mean of its divisors is an integer number (130270555008).

Almost surely, 2^{1020203111131} is an apocalyptic number.

1020203111131 is a deficient number, since it is larger than the sum of its proper divisors (21961328933).

1020203111131 is an equidigital number, since it uses as much as digits as its factorization.

1020203111131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5310041.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1020203111131 its reverse (1311113020201), we get a palindrome (2331316131332).

The spelling of 1020203111131 in words is "one trillion, twenty billion, two hundred three million, one hundred eleven thousand, one hundred thirty-one".