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20202131333013 = 3711312796656239
BaseRepresentation
bin1001001011111101011001…
…10111001001111110010101
32122112022020021020010101220
410211332230313021332111
510121442431110124023
6110544421522040553
74153361435012520
oct445765467117625
978468207203356
1020202131333013
116489748518283
122323384aa9159
13b3708c0416b6
144dbb07423bb7
152507854b13e3
hex125facdc9f95

20202131333013 has 32 divisors (see below), whose sum is σ = 31080913305600. Its totient is φ = 11432967388416.

The previous prime is 20202131332973. The next prime is 20202131333023. The reversal of 20202131333013 is 31033313120202.

It is not a de Polignac number, because 20202131333013 - 29 = 20202131332501 is a prime.

It is a super-2 number, since 2×202021313330132 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202131333023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 293053 + ... + 6363186.

It is an arithmetic number, because the mean of its divisors is an integer number (971278540800).

Almost surely, 220202131333013 is an apocalyptic number.

It is an amenable number.

20202131333013 is a deficient number, since it is larger than the sum of its proper divisors (10878781972587).

20202131333013 is a wasteful number, since it uses less digits than its factorization.

20202131333013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6657641.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 20202131333013 its reverse (31033313120202), we get a palindrome (51235444453215).

The spelling of 20202131333013 in words is "twenty trillion, two hundred two billion, one hundred thirty-one million, three hundred thirty-three thousand, thirteen".

Divisors: 1 3 7 21 113 339 791 1279 2373 3837 8953 26859 144527 433581 1011689 3035067 6656239 19968717 46593673 139781019 752155007 2256465021 5265085049 8513329681 15795255147 25539989043 59593307767 178779923301 962006253953 2886018761859 6734043777671 20202131333013