231002422144440 has 32 divisors (see below), whose sum is σ = 693007266433680. Its totient is φ = 61600645905152.

The previous prime is 231002422144409. The next prime is 231002422144457. The reversal of 231002422144440 is 44441224200132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 962510092149 + ... + 962510092388.

Almost surely, 2^{231002422144440} is an apocalyptic number.

231002422144440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231002422144440 is an abundant number, since it is smaller than the sum of its proper divisors (462004844289240).

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

231002422144440 is a wasteful number, since it uses less digits than its factorization.

231002422144440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925020184551 (or 1925020184547 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 231002422144440 its reverse (44441224200132), we get a palindrome (275443646344572).

The spelling of 231002422144440 in words is "two hundred thirty-one trillion, two billion, four hundred twenty-two million, one hundred forty-four thousand, four hundred forty".