31230496745 has 16 divisors (see below), whose sum is σ = 45084627840. Its totient is φ = 20288081664.

The previous prime is 31230496741. The next prime is 31230496813. The reversal of 31230496745 is 54769403213.

It is a cyclic number.

It is not a de Polignac number, because 31230496745 - 2² = 31230496741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31230496696 and 31230496705.

It is not an unprimeable number, because it can be changed into a prime (31230496741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23480912 + ... + 23482241.

It is an arithmetic number, because the mean of its divisors is an integer number (2817789240).

Almost surely, 2^31230496745 is an apocalyptic number.

31230496745 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31230496745 is a deficient number, since it is larger than the sum of its proper divisors (13854131095).

31230496745 is a wasteful number, since it uses less digits than its factorization.

31230496745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46963184.

The product of its (nonzero) digits is 544320, while the sum is 44.

Adding to 31230496745 its reverse (54769403213), we get a palindrome (85999899958).

The spelling of 31230496745 in words is "thirty-one billion, two hundred thirty million, four hundred ninety-six thousand, seven hundred forty-five".