1021303101303 has 12 divisors (see below), whose sum is σ = 1529853205608. Its totient is φ = 680868734040.

The previous prime is 1021303101271. The next prime is 1021303101383. The reversal of 1021303101303 is 3031013031201.

It is a happy number.

1021303101303 is a `hidden beast` number, since 1 + 0 + 21 + 30 + 310 + 1 + 303 = 666.

It is not a de Polignac number, because 1021303101303 - 2⁵ = 1021303101271 is a prime.

It is a super-2 number, since 2×1021303101303² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021303101383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2101446468 + ... + 2101446953.

It is an arithmetic number, because the mean of its divisors is an integer number (127487767134).

Almost surely, 2^{1021303101303} is an apocalyptic number.

1021303101303 is a deficient number, since it is larger than the sum of its proper divisors (508550104305).

1021303101303 is an frugal number, since it uses more digits than its factorization.

1021303101303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202893436 (or 4202893424 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 1021303101303 its reverse (3031013031201), we get a palindrome (4052316132504).

The spelling of 1021303101303 in words is "one trillion, twenty-one billion, three hundred three million, one hundred one thousand, three hundred three".