231515010341401 has 8 divisors (see below), whose sum is σ = 239498484611400. Its totient is φ = 223531549274880.

The previous prime is 231515010341399. The next prime is 231515010341437. The reversal of 231515010341401 is 104143010515132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 66284038533001 + 165230971808400 = 8141501^2 + 12854220^2 .

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 231515010341401 - 2¹ = 231515010341399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231515010341471) 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, 43730671 + ... + 48738091.

It is an arithmetic number, because the mean of its divisors is an integer number (29937310576425).

Almost surely, 2^{231515010341401} is an apocalyptic number.

It is an amenable number.

231515010341401 is a deficient number, since it is larger than the sum of its proper divisors (7983474269999).

231515010341401 is a wasteful number, since it uses less digits than its factorization.

231515010341401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6601739.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 231515010341401 its reverse (104143010515132), we get a palindrome (335658020856533).

The spelling of 231515010341401 in words is "two hundred thirty-one trillion, five hundred fifteen billion, ten million, three hundred forty-one thousand, four hundred one".