1021351253413 has 16 divisors (see below), whose sum is σ = 1080754488000. Its totient is φ = 962514548352.

The previous prime is 1021351253411. The next prime is 1021351253443. The reversal of 1021351253413 is 3143521531201.

It is a cyclic number.

It is not a de Polignac number, because 1021351253413 - 2¹ = 1021351253411 is a prime.

It is a super-2 number, since 2×1021351253413² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021351253411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24566998 + ... + 24608536.

It is an arithmetic number, because the mean of its divisors is an integer number (67547155500).

Almost surely, 2^{1021351253413} is an apocalyptic number.

It is an amenable number.

1021351253413 is a deficient number, since it is larger than the sum of its proper divisors (59403234587).

1021351253413 is a wasteful number, since it uses less digits than its factorization.

1021351253413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48324.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 1021351253413 its reverse (3143521531201), we get a palindrome (4164872784614).

The spelling of 1021351253413 in words is "one trillion, twenty-one billion, three hundred fifty-one million, two hundred fifty-three thousand, four hundred thirteen".