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102313202232121 = 1741199773505669
BaseRepresentation
bin10111010000110110100110…
…000100110010101100111001
3111102021001020222102021202221
4113100312212010302230321
5101402244414232411441
61001334011454324041
730356612346532426
oct2720664604625471
9442231228367687
10102313202232121
112a6668703a66a1
12b584b984b9621
13451212a766b8a
141b39db1d72d4d
15bc66040088d1
hex5d0da6132b39

102313202232121 has 16 divisors (see below), whose sum is σ = 111029432466960. Its totient is φ = 93899080529920.

The previous prime is 102313202232119. The next prime is 102313202232133. The reversal of 102313202232121 is 121232202313201.

It can be written as a sum of positive squares in 8 ways, for example, as 2468242092096 + 99844960140025 = 1571064^2 + 9992245^2 .

It is a cyclic number.

It is not a de Polignac number, because 102313202232121 - 21 = 102313202232119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102313202232181) 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, 35360926 + ... + 38144743.

It is an arithmetic number, because the mean of its divisors is an integer number (6939339529185).

Almost surely, 2102313202232121 is an apocalyptic number.

It is an amenable number.

102313202232121 is a deficient number, since it is larger than the sum of its proper divisors (8716230234839).

102313202232121 is a wasteful number, since it uses less digits than its factorization.

102313202232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73507724.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 102313202232121 its reverse (121232202313201), we get a palindrome (223545404545322).

The spelling of 102313202232121 in words is "one hundred two trillion, three hundred thirteen billion, two hundred two million, two hundred thirty-two thousand, one hundred twenty-one".

Divisors: 1 17 41 697 1997 33949 81877 1391909 73505669 1249596373 3013732429 51233451293 146790820993 2495443956881 6018423660713 102313202232121