10131313545 has 80 divisors (see below), whose sum is σ = 18932430528. Its totient is φ = 5178349440.

The previous prime is 10131313537. The next prime is 10131313571. The reversal of 10131313545 is 54531313101.

It is a happy number.

10131313545 is a `hidden beast` number, since 101 + 3 + 1 + 3 + 13 + 545 = 666.

It is not a de Polignac number, because 10131313545 - 2³ = 10131313537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 998950 + ... + 1009040.

Almost surely, 2^10131313545 is an apocalyptic number.

10131313545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10131313545 is a deficient number, since it is larger than the sum of its proper divisors (8801116983).

10131313545 is a wasteful number, since it uses less digits than its factorization.

10131313545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10212 (or 10203 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

Adding to 10131313545 its reverse (54531313101), we get a palindrome (64662626646).

The spelling of 10131313545 in words is "ten billion, one hundred thirty-one million, three hundred thirteen thousand, five hundred forty-five".