45123021030251 has 4 divisors (see below), whose sum is σ = 45123045675792. Its totient is φ = 45122996384712.

The previous prime is 45123021030239. The next prime is 45123021030289. The reversal of 45123021030251 is 15203012032154.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45123021030251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45123021035251) 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, 9334976 + ... + 13318701.

It is an arithmetic number, because the mean of its divisors is an integer number (11280761418948).

Almost surely, 2^{45123021030251} is an apocalyptic number.

45123021030251 is a deficient number, since it is larger than the sum of its proper divisors (24645541).

45123021030251 is a wasteful number, since it uses less digits than its factorization.

45123021030251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24645540.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 45123021030251 in words is "forty-five trillion, one hundred twenty-three billion, twenty-one million, thirty thousand, two hundred fifty-one".