1520015432113 has 8 divisors (see below), whose sum is σ = 1533505246056. Its totient is φ = 1506526291200.

The previous prime is 1520015432107. The next prime is 1520015432147. The reversal of 1520015432113 is 3112345100251.

It can be written as a sum of positive squares in 4 ways, for example, as 71956989504 + 1448058442609 = 268248^2 + 1203353^2 .

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 1520015432113 - 2¹⁷ = 1520015301041 is a prime.

It is a super-2 number, since 2×1520015432113² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1520015432513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5096043 + ... + 5386063.

It is an arithmetic number, because the mean of its divisors is an integer number (191688155757).

Almost surely, 2^{1520015432113} is an apocalyptic number.

It is an amenable number.

1520015432113 is a deficient number, since it is larger than the sum of its proper divisors (13489813943).

1520015432113 is a wasteful number, since it uses less digits than its factorization.

1520015432113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336515.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 1520015432113 in words is "one trillion, five hundred twenty billion, fifteen million, four hundred thirty-two thousand, one hundred thirteen".