1231021424344 has 16 divisors (see below), whose sum is σ = 2322866862000. Its totient is φ = 611590261152.

The previous prime is 1231021424323. The next prime is 1231021424363. The reversal of 1231021424344 is 4434241201321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490055044 + ... + 490057555.

It is an arithmetic number, because the mean of its divisors is an integer number (145179178875).

Almost surely, 2^{1231021424344} is an apocalyptic number.

It is an amenable number.

1231021424344 is a deficient number, since it is larger than the sum of its proper divisors (1091845437656).

1231021424344 is a wasteful number, since it uses less digits than its factorization.

1231021424344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980112762 (or 980112758 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 1231021424344 its reverse (4434241201321), we get a palindrome (5665262625665).

The spelling of 1231021424344 in words is "one trillion, two hundred thirty-one billion, twenty-one million, four hundred twenty-four thousand, three hundred forty-four".