231533420142015 has 48 divisors (see below), whose sum is σ = 413693915701248. Its totient is φ = 119727654856128.

The previous prime is 231533420141987. The next prime is 231533420142133. The reversal of 231533420142015 is 510241024335132.

231533420142015 is a `hidden beast` number, since 2 + 3 + 15 + 3 + 3 + 4 + 201 + 420 + 15 = 666.

It is not a de Polignac number, because 231533420142015 - 2⁹ = 231533420141503 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 511325407 + ... + 511778016.

It is an arithmetic number, because the mean of its divisors is an integer number (8618623243776).

Almost surely, 2^{231533420142015} is an apocalyptic number.

231533420142015 is a deficient number, since it is larger than the sum of its proper divisors (182160495559233).

231533420142015 is a wasteful number, since it uses less digits than its factorization.

231533420142015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023103588 (or 1023103585 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 231533420142015 its reverse (510241024335132), we get a palindrome (741774444477147).

The spelling of 231533420142015 in words is "two hundred thirty-one trillion, five hundred thirty-three billion, four hundred twenty million, one hundred forty-two thousand, fifteen".