340235303121 has 80 divisors (see below), whose sum is σ = 604733962624. Its totient is φ = 186573424896.

The previous prime is 340235303101. The next prime is 340235303153. The reversal of 340235303121 is 121303532043.

340235303121 is a `hidden beast` number, since 3 + 4 + 0 + 2 + 3 + 530 + 3 + 121 = 666.

It is not a de Polignac number, because 340235303121 - 2⁷ = 340235302993 is a prime.

It is a super-2 number, since 2×340235303121² (a number of 24 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (340235303101) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1420386 + ... + 1642548.

Almost surely, 2^340235303121 is an apocalyptic number.

It is an amenable number.

340235303121 is a deficient number, since it is larger than the sum of its proper divisors (264498659503).

340235303121 is a wasteful number, since it uses less digits than its factorization.

340235303121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222292 (or 222283 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 340235303121 its reverse (121303532043), we get a palindrome (461538835164).

The spelling of 340235303121 in words is "three hundred forty billion, two hundred thirty-five million, three hundred three thousand, one hundred twenty-one".