1042351152121 has 4 divisors (see below), whose sum is σ = 1042526667600. Its totient is φ = 1042175636644.

The previous prime is 1042351152119. The next prime is 1042351152187. The reversal of 1042351152121 is 1212511532401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1042351152121 - 2¹ = 1042351152119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1042351152121.

It is not an unprimeable number, because it can be changed into a prime (1042351150121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87748831 + ... + 87760708.

It is an arithmetic number, because the mean of its divisors is an integer number (260631666900).

Almost surely, 2^{1042351152121} is an apocalyptic number.

It is an amenable number.

1042351152121 is a deficient number, since it is larger than the sum of its proper divisors (175515479).

1042351152121 is an equidigital number, since it uses as much as digits as its factorization.

1042351152121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175515478.

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 1042351152121 its reverse (1212511532401), we get a palindrome (2254862684522).

The spelling of 1042351152121 in words is "one trillion, forty-two billion, three hundred fifty-one million, one hundred fifty-two thousand, one hundred twenty-one".