231402020345 has 8 divisors (see below), whose sum is σ = 277690061376. Its totient is φ = 185116524976.

The previous prime is 231402020341. The next prime is 231402020351. The reversal of 231402020345 is 543020204132.

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 231402020345 - 2² = 231402020341 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231402020341) 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, 430367 + ... + 804996.

It is an arithmetic number, because the mean of its divisors is an integer number (34711257672).

Almost surely, 2^231402020345 is an apocalyptic number.

It is an amenable number.

231402020345 is a deficient number, since it is larger than the sum of its proper divisors (46288041031).

231402020345 is a wasteful number, since it uses less digits than its factorization.

231402020345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272831.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 231402020345 its reverse (543020204132), we get a palindrome (774422224477).

The spelling of 231402020345 in words is "two hundred thirty-one billion, four hundred two million, twenty thousand, three hundred forty-five".