402031120034345 has 64 divisors (see below), whose sum is σ = 516617105531904. Its totient is φ = 299277931438080.

The previous prime is 402031120034279. The next prime is 402031120034377. The reversal of 402031120034345 is 543430021130204.

It is not a de Polignac number, because 402031120034345 - 2¹⁸ = 402031119772201 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31308390125 + ... + 31308402965.

It is an arithmetic number, because the mean of its divisors is an integer number (8072142273936).

Almost surely, 2^{402031120034345} is an apocalyptic number.

It is an amenable number.

402031120034345 is a deficient number, since it is larger than the sum of its proper divisors (114585985497559).

402031120034345 is a wasteful number, since it uses less digits than its factorization.

402031120034345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18522.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 402031120034345 its reverse (543430021130204), we get a palindrome (945461141164549).

The spelling of 402031120034345 in words is "four hundred two trillion, thirty-one billion, one hundred twenty million, thirty-four thousand, three hundred forty-five".