Search a number
BaseRepresentation
bin1110001111100100010100…
…10111101111100000010101
311002220021112212212102111022
413013302022113233200111
513101131331042032013
6150340434325250525
76411612050534441
oct707621227574025
9132807485772438
1031321223002133
119a8628a929929
12361a31a263a45
13146276a3ca4cc
147a3d53417821
15394b0beeb008
hex1c7c8a5ef815

31321223002133 has 8 divisors (see below), whose sum is σ = 31862219785560. Its totient is φ = 30784753388800.

The previous prime is 31321223002057. The next prime is 31321223002141. The reversal of 31321223002133 is 33120032212313.

Adding to 31321223002133 its reverse (33120032212313), we get a palindrome (64441255214446).

It can be written as a sum of positive squares in 4 ways, for example, as 19413602651569 + 11907620350564 = 4406087^2 + 3450742^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31321223002133 - 234 = 31304043132949 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 (31321223062133) 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, 1131778568 + ... + 1131806241.

It is an arithmetic number, because the mean of its divisors is an integer number (3982777473195).

Almost surely, 231321223002133 is an apocalyptic number.

It is an amenable number.

31321223002133 is a deficient number, since it is larger than the sum of its proper divisors (540996783427).

31321223002133 is a wasteful number, since it uses less digits than its factorization.

31321223002133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263585047.

The product of its (nonzero) digits is 3888, while the sum is 26.

The spelling of 31321223002133 in words is "thirty-one trillion, three hundred twenty-one billion, two hundred twenty-three million, two thousand, one hundred thirty-three".