340155335123 has 16 divisors (see below), whose sum is σ = 353121161472. Its totient is φ = 327476604000.

The previous prime is 340155335119. The next prime is 340155335129. The reversal of 340155335123 is 321533551043.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 340155335123 - 2² = 340155335119 is a prime.

It is a super-3 number, since 3×340155335123³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (340155335129) 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, 579788 + ... + 1008198.

It is an arithmetic number, because the mean of its divisors is an integer number (22070072592).

Almost surely, 2^340155335123 is an apocalyptic number.

340155335123 is a deficient number, since it is larger than the sum of its proper divisors (12965826349).

340155335123 is a wasteful number, since it uses less digits than its factorization.

340155335123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428746.

The product of its (nonzero) digits is 81000, while the sum is 35.

Adding to 340155335123 its reverse (321533551043), we get a palindrome (661688886166).

The spelling of 340155335123 in words is "three hundred forty billion, one hundred fifty-five million, three hundred thirty-five thousand, one hundred twenty-three".