240115455121 has 8 divisors (see below), whose sum is σ = 243709190784. Its totient is φ = 236522011440.

The previous prime is 240115455113. The next prime is 240115455191. The reversal of 240115455121 is 121554511042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 240115455121 - 2³ = 240115455113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240115455191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2036616 + ... + 2151286.

It is an arithmetic number, because the mean of its divisors is an integer number (30463648848).

Almost surely, 2^240115455121 is an apocalyptic number.

It is an amenable number.

240115455121 is a deficient number, since it is larger than the sum of its proper divisors (3593735663).

240115455121 is a wasteful number, since it uses less digits than its factorization.

240115455121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145991.

The product of its (nonzero) digits is 8000, while the sum is 31.

Adding to 240115455121 its reverse (121554511042), we get a palindrome (361669966163).

The spelling of 240115455121 in words is "two hundred forty billion, one hundred fifteen million, four hundred fifty-five thousand, one hundred twenty-one".