45444313131 has 32 divisors (see below), whose sum is σ = 69676720128. Its totient is φ = 25807848960.

The previous prime is 45444313129. The next prime is 45444313133. The reversal of 45444313131 is 13131344454.

It is an interprime number because it is at equal distance from previous prime (45444313129) and next prime (45444313133).

It is not a de Polignac number, because 45444313131 - 2¹ = 45444313129 is a prime.

It is a super-2 number, since 2×45444313131² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45444313092 and 45444313101.

It is not an unprimeable number, because it can be changed into a prime (45444313133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4780375 + ... + 4789871.

It is an arithmetic number, because the mean of its divisors is an integer number (2177397504).

Almost surely, 2^45444313131 is an apocalyptic number.

45444313131 is a deficient number, since it is larger than the sum of its proper divisors (24232406997).

45444313131 is a wasteful number, since it uses less digits than its factorization.

45444313131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10891.

The product of its digits is 34560, while the sum is 33.

Adding to 45444313131 its reverse (13131344454), we get a palindrome (58575657585).

The spelling of 45444313131 in words is "forty-five billion, four hundred forty-four million, three hundred thirteen thousand, one hundred thirty-one".