1520103311351 has 8 divisors (see below), whose sum is σ = 1534099892160. Its totient is φ = 1506107652192.

The previous prime is 1520103311329. The next prime is 1520103311369. The reversal of 1520103311351 is 1531133010251.

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 a de Polignac number, because none of the positive numbers 2^k-1520103311351 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1520103311351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520103311371) 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, 3336386 + ... + 3764528.

It is an arithmetic number, because the mean of its divisors is an integer number (191762486520).

Almost surely, 2^{1520103311351} is an apocalyptic number.

1520103311351 is a deficient number, since it is larger than the sum of its proper divisors (13996580809).

1520103311351 is a wasteful number, since it uses less digits than its factorization.

1520103311351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460825.

The product of its (nonzero) digits is 1350, while the sum is 26.

The spelling of 1520103311351 in words is "one trillion, five hundred twenty billion, one hundred three million, three hundred eleven thousand, three hundred fifty-one".