45122323031 has 4 divisors (see below), whose sum is σ = 45446944200. Its totient is φ = 44797701864.

The previous prime is 45122323019. The next prime is 45122323061. The reversal of 45122323031 is 13032322154.

It is a happy number.

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-45122323031 is a prime.

It is a super-2 number, since 2×45122323031² (a number of 22 digits) contains 22 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 (45122323061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162310376 + ... + 162310653.

It is an arithmetic number, because the mean of its divisors is an integer number (11361736050).

Almost surely, 2^45122323031 is an apocalyptic number.

45122323031 is a deficient number, since it is larger than the sum of its proper divisors (324621169).

45122323031 is a wasteful number, since it uses less digits than its factorization.

45122323031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324621168.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 45122323031 its reverse (13032322154), we get a palindrome (58154645185).

The spelling of 45122323031 in words is "forty-five billion, one hundred twenty-two million, three hundred twenty-three thousand, thirty-one".