1231424142452 has 18 divisors (see below), whose sum is σ = 2506827718962. Its totient is φ = 527753203824.

The previous prime is 1231424142413. The next prime is 1231424142469. The reversal of 1231424142452 is 2542414241321.

It can be written as a sum of positive squares in only one way, i.e., 732643554916 + 498780587536 = 855946^2 + 706244^2 .

It is a super-2 number, since 2×1231424142452² (a number of 25 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 5 ways as a sum of consecutive naturals, for example, 3141387923 + ... + 3141388314.

It is an arithmetic number, because the mean of its divisors is an integer number (139268206609).

Almost surely, 2^{1231424142452} is an apocalyptic number.

It is an amenable number.

1231424142452 is an abundant number, since it is smaller than the sum of its proper divisors (1275403576510).

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

1231424142452 is a wasteful number, since it uses less digits than its factorization.

1231424142452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6282776255 (or 6282776246 counting only the distinct ones).

The product of its digits is 61440, while the sum is 35.

Adding to 1231424142452 its reverse (2542414241321), we get a palindrome (3773838383773).

The spelling of 1231424142452 in words is "one trillion, two hundred thirty-one billion, four hundred twenty-four million, one hundred forty-two thousand, four hundred fifty-two".