1020211133123 has 32 divisors (see below), whose sum is σ = 1270134028800. Its totient is φ = 802688354208.

The previous prime is 1020211133107. The next prime is 1020211133159. The reversal of 1020211133123 is 3213311120201.

It is a happy number.

It is not a de Polignac number, because 1020211133123 - 2⁴ = 1020211133107 is a prime.

It is a super-2 number, since 2×1020211133123² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020211133095 and 1020211133104.

It is not an unprimeable number, because it can be changed into a prime (1020211133023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2567540 + ... + 2938142.

It is an arithmetic number, because the mean of its divisors is an integer number (39691688400).

Almost surely, 2^{1020211133123} is an apocalyptic number.

1020211133123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1020211133123 is a deficient number, since it is larger than the sum of its proper divisors (249922895677).

1020211133123 is an equidigital number, since it uses as much as digits as its factorization.

1020211133123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370828 (or 370802 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1020211133123 its reverse (3213311120201), we get a palindrome (4233522253324).

The spelling of 1020211133123 in words is "one trillion, twenty billion, two hundred eleven million, one hundred thirty-three thousand, one hundred twenty-three".