243120454050 has 48 divisors (see below), whose sum is σ = 603876661920. Its totient is φ = 64731267840.

The previous prime is 243120454039. The next prime is 243120454061. The reversal of 243120454050 is 50454021342.

It is an interprime number because it is at equal distance from previous prime (243120454039) and next prime (243120454061).

It is a super-2 number, since 2×243120454050² (a number of 24 digits) contains 22 as substring.

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 = 243120453999 and 243120454017.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1163895 + ... + 1356794.

It is an arithmetic number, because the mean of its divisors is an integer number (12580763790).

Almost surely, 2^243120454050 is an apocalyptic number.

243120454050 is an abundant number, since it is smaller than the sum of its proper divisors (360756207870).

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

243120454050 is a wasteful number, since it uses less digits than its factorization.

243120454050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521347 (or 2521342 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 243120454050 its reverse (50454021342), we get a palindrome (293574475392).

The spelling of 243120454050 in words is "two hundred forty-three billion, one hundred twenty million, four hundred fifty-four thousand, fifty".