231421245244512 has 48 divisors (see below), whose sum is σ = 607874470237440. Its totient is φ = 77090421244032.

The previous prime is 231421245244489. The next prime is 231421245244547. The reversal of 231421245244512 is 215442542124132.

231421245244512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×231421245244512² (a number of 30 digits) contains 22 as substring.

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, 781004812 + ... + 781301067.

It is an arithmetic number, because the mean of its divisors is an integer number (12664051463280).

Almost surely, 2^{231421245244512} is an apocalyptic number.

It is an amenable number.

231421245244512 is an abundant number, since it is smaller than the sum of its proper divisors (376453224992928).

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

231421245244512 is a wasteful number, since it uses less digits than its factorization.

231421245244512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562307435 (or 1562307427 counting only the distinct ones).

The product of its digits is 614400, while the sum is 42.

Adding to 231421245244512 its reverse (215442542124132), we get a palindrome (446863787368644).

The spelling of 231421245244512 in words is "two hundred thirty-one trillion, four hundred twenty-one billion, two hundred forty-five million, two hundred forty-four thousand, five hundred twelve".