45243043031 has 4 divisors (see below), whose sum is σ = 46702496064. Its totient is φ = 43783590000.

The previous prime is 45243043009. The next prime is 45243043051. The reversal of 45243043031 is 13034034254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13034034254 = 2 ⋅6517017127.

It is a cyclic number.

It is not a de Polignac number, because 45243043031 - 2¹⁸ = 45242780887 is a prime.

It is a super-2 number, since 2×45243043031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45243042985 and 45243043003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45243043051) 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, 729726470 + ... + 729726531.

It is an arithmetic number, because the mean of its divisors is an integer number (11675624016).

Almost surely, 2^45243043031 is an apocalyptic number.

45243043031 is a deficient number, since it is larger than the sum of its proper divisors (1459453033).

45243043031 is a wasteful number, since it uses less digits than its factorization.

45243043031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459453032.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 45243043031 its reverse (13034034254), we get a palindrome (58277077285).

The spelling of 45243043031 in words is "forty-five billion, two hundred forty-three million, forty-three thousand, thirty-one".