1054031013521 has 4 divisors (see below), whose sum is σ = 1061724670692. Its totient is φ = 1046337356352.

The previous prime is 1054031013439. The next prime is 1054031013577. The reversal of 1054031013521 is 1253101304501.

1054031013521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 584345580625 + 469685432896 = 764425^2 + 685336^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1054031013521 is a prime.

It is a super-2 number, since 2×1054031013521² (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 (1054031043521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3846828380 + ... + 3846828653.

It is an arithmetic number, because the mean of its divisors is an integer number (265431167673).

Almost surely, 2^{1054031013521} is an apocalyptic number.

It is an amenable number.

1054031013521 is a deficient number, since it is larger than the sum of its proper divisors (7693657171).

1054031013521 is an equidigital number, since it uses as much as digits as its factorization.

1054031013521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7693657170.

The product of its (nonzero) digits is 1800, while the sum is 26.

The spelling of 1054031013521 in words is "one trillion, fifty-four billion, thirty-one million, thirteen thousand, five hundred twenty-one".