40130123515 has 8 divisors (see below), whose sum is σ = 48972354480. Its totient is φ = 31559961312.

The previous prime is 40130123491. The next prime is 40130123591. The reversal of 40130123515 is 51532103104.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40130123515 - 2¹¹ = 40130121467 is a prime.

It is a super-2 number, since 2×40130123515² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40130123515.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68016864 + ... + 68017453.

It is an arithmetic number, because the mean of its divisors is an integer number (6121544310).

Almost surely, 2^40130123515 is an apocalyptic number.

40130123515 is a deficient number, since it is larger than the sum of its proper divisors (8842230965).

40130123515 is a wasteful number, since it uses less digits than its factorization.

40130123515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136034381.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 40130123515 its reverse (51532103104), we get a palindrome (91662226619).

The spelling of 40130123515 in words is "forty billion, one hundred thirty million, one hundred twenty-three thousand, five hundred fifteen".