231401014020 has 288 divisors, whose sum is σ = 787495153536. Its totient is φ = 54506649600.

The previous prime is 231401013953. The next prime is 231401014027. The reversal of 231401014020 is 20410104132.

231401014020 is a `hidden beast` number, since 23 + 140 + 101 + 402 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 231401013984 and 231401014002.

It is not an unprimeable number, because it can be changed into a prime (231401014027) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 68642935 + ... + 68646305.

It is an arithmetic number, because the mean of its divisors is an integer number (2734358172).

Almost surely, 2^231401014020 is an apocalyptic number.

231401014020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231401014020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393747576768).

231401014020 is an abundant number, since it is smaller than the sum of its proper divisors (556094139516).

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

231401014020 is a wasteful number, since it uses less digits than its factorization.

231401014020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4371 (or 4366 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 231401014020 its reverse (20410104132), we get a palindrome (251811118152).

The spelling of 231401014020 in words is "two hundred thirty-one billion, four hundred one million, fourteen thousand, twenty".