1020123224145 has 16 divisors (see below), whose sum is σ = 1813552398720. Its totient is φ = 544065719472.

The previous prime is 1020123224137. The next prime is 1020123224167. The reversal of 1020123224145 is 5414223210201.

1020123224145 is a `hidden beast` number, since 1 + 0 + 201 + 23 + 22 + 414 + 5 = 666.

It is not a de Polignac number, because 1020123224145 - 2³ = 1020123224137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3778234029 + ... + 3778234298.

It is an arithmetic number, because the mean of its divisors is an integer number (113347024920).

Almost surely, 2^{1020123224145} is an apocalyptic number.

1020123224145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1020123224145 is a deficient number, since it is larger than the sum of its proper divisors (793429174575).

1020123224145 is an equidigital number, since it uses as much as digits as its factorization.

1020123224145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7556468341 (or 7556468335 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 1020123224145 its reverse (5414223210201), we get a palindrome (6434346434346).

The spelling of 1020123224145 in words is "one trillion, twenty billion, one hundred twenty-three million, two hundred twenty-four thousand, one hundred forty-five".