145021131450211 has 4 divisors (see below), whose sum is σ = 145052125498800. Its totient is φ = 144990137401624.

The previous prime is 145021131450197. The next prime is 145021131450253. The reversal of 145021131450211 is 112054131120541.

145021131450211 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 is a cyclic number.

It is not a de Polignac number, because 145021131450211 - 2⁹ = 145021131449699 is a prime.

It is a super-2 number, since 2×145021131450211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145021131450311) 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, 15497017276 + ... + 15497026633.

It is an arithmetic number, because the mean of its divisors is an integer number (36263031374700).

Almost surely, 2^{145021131450211} is an apocalyptic number.

145021131450211 is a deficient number, since it is larger than the sum of its proper divisors (30994048589).

145021131450211 is an equidigital number, since it uses as much as digits as its factorization.

145021131450211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30994048588.

The product of its (nonzero) digits is 4800, while the sum is 31.

Adding to 145021131450211 its reverse (112054131120541), we get a palindrome (257075262570752).

The spelling of 145021131450211 in words is "one hundred forty-five trillion, twenty-one billion, one hundred thirty-one million, four hundred fifty thousand, two hundred eleven".