240412013121 has 16 divisors (see below), whose sum is σ = 366392484864. Its totient is φ = 137359404624.

The previous prime is 240412013071. The next prime is 240412013141. The reversal of 240412013121 is 121310214042.

It is not a de Polignac number, because 240412013121 - 2⁷ = 240412012993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (240412013141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 629925 + ... + 936818.

It is an arithmetic number, because the mean of its divisors is an integer number (22899530304).

Almost surely, 2^240412013121 is an apocalyptic number.

240412013121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

240412013121 is a deficient number, since it is larger than the sum of its proper divisors (125980471743).

240412013121 is a wasteful number, since it uses less digits than its factorization.

240412013121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574060.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 240412013121 its reverse (121310214042), we get a palindrome (361722227163).

The spelling of 240412013121 in words is "two hundred forty billion, four hundred twelve million, thirteen thousand, one hundred twenty-one".