1020423125033 has 12 divisors (see below), whose sum is σ = 1106122187088. Its totient is φ = 940934245680.

The previous prime is 1020423125017. The next prime is 1020423125081. The reversal of 1020423125033 is 3305213240201.

It is a happy number.

It is not a de Polignac number, because 1020423125033 - 2⁴ = 1020423125017 is a prime.

It is a super-2 number, since 2×1020423125033² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020423124993 and 1020423125011.

It is not an unprimeable number, because it can be changed into a prime (1020423625033) 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, 3027923 + ... + 3348008.

It is an arithmetic number, because the mean of its divisors is an integer number (92176848924).

Almost surely, 2^{1020423125033} is an apocalyptic number.

1020423125033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1020423125033 is a deficient number, since it is larger than the sum of its proper divisors (85699062055).

1020423125033 is an equidigital number, since it uses as much as digits as its factorization.

1020423125033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6376904 (or 6376891 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 1020423125033 its reverse (3305213240201), we get a palindrome (4325636365234).

The spelling of 1020423125033 in words is "one trillion, twenty billion, four hundred twenty-three million, one hundred twenty-five thousand, thirty-three".