1021241145151 has 4 divisors (see below), whose sum is σ = 1021245372400. Its totient is φ = 1021236917904.

The previous prime is 1021241145143. The next prime is 1021241145173. The reversal of 1021241145151 is 1515411421201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1021241145151 - 2³ = 1021241145143 is a prime.

It is a super-3 number, since 3×1021241145151³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021241145101) 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, 1727766 + ... + 2242243.

It is an arithmetic number, because the mean of its divisors is an integer number (255311343100).

Almost surely, 2^{1021241145151} is an apocalyptic number.

1021241145151 is a deficient number, since it is larger than the sum of its proper divisors (4227249).

1021241145151 is an equidigital number, since it uses as much as digits as its factorization.

1021241145151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4227248.

The product of its (nonzero) digits is 1600, while the sum is 28.

Adding to 1021241145151 its reverse (1515411421201), we get a palindrome (2536652566352).

The spelling of 1021241145151 in words is "one trillion, twenty-one billion, two hundred forty-one million, one hundred forty-five thousand, one hundred fifty-one".