1025051542321 has 4 divisors (see below), whose sum is σ = 1025201783872. Its totient is φ = 1024901300772.

The previous prime is 1025051542309. The next prime is 1025051542327. The reversal of 1025051542321 is 1232451505201.

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 1025051542321 - 2¹⁵ = 1025051509553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025051542327) 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, 75110541 + ... + 75124186.

It is an arithmetic number, because the mean of its divisors is an integer number (256300445968).

Almost surely, 2^{1025051542321} is an apocalyptic number.

It is an amenable number.

1025051542321 is a deficient number, since it is larger than the sum of its proper divisors (150241551).

1025051542321 is an equidigital number, since it uses as much as digits as its factorization.

1025051542321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150241550.

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 1025051542321 in words is "one trillion, twenty-five billion, fifty-one million, five hundred forty-two thousand, three hundred twenty-one".