1042120242 has 40 divisors (see below), whose sum is σ = 2410459392. Its totient is φ = 336166200.

The previous prime is 1042120231. The next prime is 1042120243. The reversal of 1042120242 is 2420212401.

1042120242 is a `hidden beast` number, since 1 + 0 + 421 + 2 + 0 + 242 = 666.

It is a super-2 number, since 2×1042120242² = 2172029197572277128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1042120243) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 98734 + ... + 108777.

Almost surely, 2^1042120242 is an apocalyptic number.

1042120242 is an abundant number, since it is smaller than the sum of its proper divisors (1368339150).

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

1042120242 is a wasteful number, since it uses less digits than its factorization.

1042120242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207556 (or 207547 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1042120242 is about 32281.8872124912. The cubic root of 1042120242 is about 1013.8474438745.

Adding to 1042120242 its reverse (2420212401), we get a palindrome (3462332643).

The spelling of 1042120242 in words is "one billion, forty-two million, one hundred twenty thousand, two hundred forty-two".