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122203013231 = 1317613902047
BaseRepresentation
bin111000111001111011…
…1100000000001101111
3102200102112112021112002
41301303313200001233
54000232432410411
6132050030402515
711554206321335
oct1616367400157
9380375467462
10122203013231
114790a462612
121b82566043b
13b6a67323b0
145cb3b69b55
1532a35ba33b
hex1c73de006f

122203013231 has 16 divisors (see below), whose sum is σ = 139572082944. Its totient is φ = 105994013184.

The previous prime is 122203013221. The next prime is 122203013239. The reversal of 122203013231 is 132310302221.

It is not a de Polignac number, because 122203013231 - 210 = 122203012207 is a prime.

It is a super-2 number, since 2×1222030132312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122203013239) 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, 315551 + ... + 586496.

It is an arithmetic number, because the mean of its divisors is an integer number (8723255184).

Almost surely, 2122203013231 is an apocalyptic number.

122203013231 is a deficient number, since it is larger than the sum of its proper divisors (17369069713).

122203013231 is a wasteful number, since it uses less digits than its factorization.

122203013231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902690.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 122203013231 its reverse (132310302221), we get a palindrome (254513315452).

The spelling of 122203013231 in words is "one hundred twenty-two billion, two hundred three million, thirteen thousand, two hundred thirty-one".

Divisors: 1 13 17 221 613 7969 10421 135473 902047 11726611 15334799 199352387 552954811 7188412543 9400231787 122203013231