231002141420 has 48 divisors (see below), whose sum is σ = 513697191840. Its totient is φ = 86955838464.

The previous prime is 231002141393. The next prime is 231002141423. The reversal of 231002141420 is 24141200132.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 231002141392 and 231002141401.

It is not an unprimeable number, because it can be changed into a prime (231002141423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3513287 + ... + 3578433.

It is an arithmetic number, because the mean of its divisors is an integer number (10702024830).

Almost surely, 2^231002141420 is an apocalyptic number.

231002141420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231002141420 is an abundant number, since it is smaller than the sum of its proper divisors (282695050420).

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

231002141420 is a wasteful number, since it uses less digits than its factorization.

231002141420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75602 (or 75600 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 231002141420 its reverse (24141200132), we get a palindrome (255143341552).

The spelling of 231002141420 in words is "two hundred thirty-one billion, two million, one hundred forty-one thousand, four hundred twenty".