1042121142 has 12 divisors (see below), whose sum is σ = 2257929180. Its totient is φ = 347373708.

The previous prime is 1042121117. The next prime is 1042121167. The reversal of 1042121142 is 2411212401.

It is an interprime number because it is at equal distance from previous prime (1042121117) and next prime (1042121167).

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 57895619 = 1042121142 / (1 + 0 + 4 + 2 + 1 + 2 + 1 + 1 + 4 + 2).

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, 28947792 + ... + 28947827.

It is an arithmetic number, because the mean of its divisors is an integer number (188160765).

Almost surely, 2^1042121142 is an apocalyptic number.

1042121142 is an abundant number, since it is smaller than the sum of its proper divisors (1215808038).

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

1042121142 is a wasteful number, since it uses less digits than its factorization.

1042121142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57895627 (or 57895624 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1042121142 is about 32281.9011521936. The cubic root of 1042121142 is about 1013.8477357354.

Adding to 1042121142 its reverse (2411212401), we get a palindrome (3453333543).

The spelling of 1042121142 in words is "one billion, forty-two million, one hundred twenty-one thousand, one hundred forty-two".