1242053544231 has 6 divisors (see below), whose sum is σ = 1794077341680. Its totient is φ = 828035696148.

The previous prime is 1242053544229. The next prime is 1242053544323. The reversal of 1242053544231 is 1324453502421.

It is a happy number.

1242053544231 is a `hidden beast` number, since 1 + 2 + 4 + 205 + 3 + 5 + 442 + 3 + 1 = 666.

It is not a de Polignac number, because 1242053544231 - 2¹ = 1242053544229 is a prime.

It is a super-2 number, since 2×1242053544231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242053544731) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69002974671 + ... + 69002974688.

It is an arithmetic number, because the mean of its divisors is an integer number (299012890280).

Almost surely, 2^{1242053544231} is an apocalyptic number.

1242053544231 is a deficient number, since it is larger than the sum of its proper divisors (552023797449).

1242053544231 is a wasteful number, since it uses less digits than its factorization.

1242053544231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138005949365 (or 138005949362 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 1242053544231 in words is "one trillion, two hundred forty-two billion, fifty-three million, five hundred forty-four thousand, two hundred thirty-one".