1240442455031 has 8 divisors (see below), whose sum is σ = 1355799331824. Its totient is φ = 1127933896320.

The previous prime is 1240442455027. The next prime is 1240442455051. The reversal of 1240442455031 is 1305542440421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1240442455031 - 2² = 1240442455027 is a prime.

It is a super-2 number, since 2×1240442455031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1240442454982 and 1240442455000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240442455001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712078610 + ... + 712080351.

It is an arithmetic number, because the mean of its divisors is an integer number (169474916478).

Almost surely, 2^{1240442455031} is an apocalyptic number.

1240442455031 is a deficient number, since it is larger than the sum of its proper divisors (115356876793).

1240442455031 is a wasteful number, since it uses less digits than its factorization.

1240442455031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424159041.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 1240442455031 its reverse (1305542440421), we get a palindrome (2545984895452).

The spelling of 1240442455031 in words is "one trillion, two hundred forty billion, four hundred forty-two million, four hundred fifty-five thousand, thirty-one".