231420120142 has 8 divisors (see below), whose sum is σ = 362222796816. Its totient is φ = 110679187872.

The previous prime is 231420120091. The next prime is 231420120143. The reversal of 231420120142 is 241021024132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231420120143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2515436043 + ... + 2515436134.

It is an arithmetic number, because the mean of its divisors is an integer number (45277849602).

Almost surely, 2^231420120142 is an apocalyptic number.

231420120142 is a deficient number, since it is larger than the sum of its proper divisors (130802676674).

231420120142 is a wasteful number, since it uses less digits than its factorization.

231420120142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5030872202.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 231420120142 its reverse (241021024132), we get a palindrome (472441144274).

The spelling of 231420120142 in words is "two hundred thirty-one billion, four hundred twenty million, one hundred twenty thousand, one hundred forty-two".