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13121013031022 = 213571438831429
BaseRepresentation
bin1011111011101111100101…
…0100100010000001101110
31201110100121221212110002102
42332323321110202001232
53204433313313443042
643523413221455102
72522650635400121
oct276737124420156
951410557773072
1013121013031022
1141a9654879036
12157ab34871492
137423c99c3010
143350bbb0c3b8
1517b493544b32
hexbeef952206e

13121013031022 has 16 divisors (see below), whose sum is σ = 21195855908640. Its totient is φ = 6055745505312.

The previous prime is 13121013030991. The next prime is 13121013031037. The reversal of 13121013031022 is 22013031012131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13121013030985 and 13121013031003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2929997 + ... + 5901432.

It is an arithmetic number, because the mean of its divisors is an integer number (1324740994290).

Almost surely, 213121013031022 is an apocalyptic number.

13121013031022 is a deficient number, since it is larger than the sum of its proper divisors (8074842877618).

13121013031022 is a wasteful number, since it uses less digits than its factorization.

13121013031022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8888587.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 13121013031022 its reverse (22013031012131), we get a palindrome (35134044043153).

The spelling of 13121013031022 in words is "thirteen trillion, one hundred twenty-one billion, thirteen million, thirty-one thousand, twenty-two".

Divisors: 1 2 13 26 57143 114286 742859 1485718 8831429 17662858 114808577 229617154 504654347347 1009308694694 6560506515511 13121013031022