1021352355231 has 16 divisors (see below), whose sum is σ = 1466685431904. Its totient is φ = 628469581824.

The previous prime is 1021352355211. The next prime is 1021352355259. The reversal of 1021352355231 is 1325532531201.

It is not a de Polignac number, because 1021352355231 - 2¹¹ = 1021352353183 is a prime.

It is a super-2 number, since 2×1021352355231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021352355192 and 1021352355201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021352355211) 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, 690546 + ... + 1587311.

It is an arithmetic number, because the mean of its divisors is an integer number (91667839494).

Almost surely, 2^{1021352355231} is an apocalyptic number.

1021352355231 is a deficient number, since it is larger than the sum of its proper divisors (445333076673).

1021352355231 is a wasteful number, since it uses less digits than its factorization.

1021352355231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289370.

The product of its (nonzero) digits is 27000, while the sum is 33.

Adding to 1021352355231 its reverse (1325532531201), we get a palindrome (2346884886432).

The spelling of 1021352355231 in words is "one trillion, twenty-one billion, three hundred fifty-two million, three hundred fifty-five thousand, two hundred thirty-one".