1242120150454 has 16 divisors (see below), whose sum is σ = 1960096093200. Its totient is φ = 589480747744.

The previous prime is 1242120150443. The next prime is 1242120150517. The reversal of 1242120150454 is 4540510212421.

It is a super-2 number, since 2×1242120150454² (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 7 ways as a sum of consecutive naturals, for example, 181486957 + ... + 181493800.

It is an arithmetic number, because the mean of its divisors is an integer number (122506005825).

Almost surely, 2^{1242120150454} is an apocalyptic number.

1242120150454 is a deficient number, since it is larger than the sum of its proper divisors (717975942746).

1242120150454 is a wasteful number, since it uses less digits than its factorization.

1242120150454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362980847.

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 1242120150454 its reverse (4540510212421), we get a palindrome (5782630362875).

The spelling of 1242120150454 in words is "one trillion, two hundred forty-two billion, one hundred twenty million, one hundred fifty thousand, four hundred fifty-four".