151423142110021 has 4 divisors (see below), whose sum is σ = 151491320024044. Its totient is φ = 151354964196000.

The previous prime is 151423142110013. The next prime is 151423142110081. The reversal of 151423142110021 is 120011241324151.

151423142110021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 107404495140996 + 44018646969025 = 10363614^2 + 6634655^2 .

It is a cyclic number.

It is not a de Polignac number, because 151423142110021 - 2³ = 151423142110013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151423142110001) 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, 34088953680 + ... + 34088958121.

It is an arithmetic number, because the mean of its divisors is an integer number (37872830006011).

Almost surely, 2^{151423142110021} is an apocalyptic number.

It is an amenable number.

151423142110021 is a deficient number, since it is larger than the sum of its proper divisors (68177914023).

151423142110021 is an equidigital number, since it uses as much as digits as its factorization.

151423142110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68177914022.

The product of its (nonzero) digits is 1920, while the sum is 28.

Adding to 151423142110021 its reverse (120011241324151), we get a palindrome (271434383434172).

The spelling of 151423142110021 in words is "one hundred fifty-one trillion, four hundred twenty-three billion, one hundred forty-two million, one hundred ten thousand, twenty-one".