231130354542 has 16 divisors (see below), whose sum is σ = 462763724160. Its totient is φ = 76959615672.

The previous prime is 231130354541. The next prime is 231130354579. The reversal of 231130354542 is 245453031132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231130354541) 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, 20952988 + ... + 20964015.

It is an arithmetic number, because the mean of its divisors is an integer number (28922732760).

Almost surely, 2^231130354542 is an apocalyptic number.

231130354542 is an abundant number, since it is smaller than the sum of its proper divisors (231633369618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231130354542 is a wasteful number, since it uses less digits than its factorization.

231130354542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41917927.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 231130354542 its reverse (245453031132), we get a palindrome (476583385674).

The spelling of 231130354542 in words is "two hundred thirty-one billion, one hundred thirty million, three hundred fifty-four thousand, five hundred forty-two".