1023420324540 has 96 divisors (see below), whose sum is σ = 2874614400000. Its totient is φ = 272051834112.

The previous prime is 1023420324523. The next prime is 1023420324593. The reversal of 1023420324540 is 454230243201.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1023420324498 and 1023420324507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131897181 + ... + 131904939.

It is an arithmetic number, because the mean of its divisors is an integer number (29943900000).

Almost surely, 2^{1023420324540} is an apocalyptic number.

1023420324540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023420324540 is an abundant number, since it is smaller than the sum of its proper divisors (1851194075460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1023420324540 is a wasteful number, since it uses less digits than its factorization.

1023420324540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14419 (or 14417 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 1023420324540 its reverse (454230243201), we get a palindrome (1477650567741).

The spelling of 1023420324540 in words is "one trillion, twenty-three billion, four hundred twenty million, three hundred twenty-four thousand, five hundred forty".