1025321311 has 16 divisors (see below), whose sum is σ = 1212715008. Its totient is φ = 848304000.

The previous prime is 1025321291. The next prime is 1025321333. The reversal of 1025321311 is 1131235201.

It is a cyclic number.

It is not a de Polignac number, because 1025321311 - 2¹³ = 1025313119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025321351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81126 + ... + 92908.

It is an arithmetic number, because the mean of its divisors is an integer number (75794688).

Almost surely, 2^1025321311 is an apocalyptic number.

1025321311 is a deficient number, since it is larger than the sum of its proper divisors (187393697).

1025321311 is a wasteful number, since it uses less digits than its factorization.

1025321311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12222.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1025321311 is about 32020.6388287304. The cubic root of 1025321311 is about 1008.3701815887.

Adding to 1025321311 its reverse (1131235201), we get a palindrome (2156556512).

The spelling of 1025321311 in words is "one billion, twenty-five million, three hundred twenty-one thousand, three hundred eleven".