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31023022123301 = 132386386317177
BaseRepresentation
bin1110000110111000111000…
…01101101010100100100101
311001211202211202022020000112
413003130130031222210211
513031240122130421201
6145551440221422405
76351224260066235
oct703343415524445
9131752752266015
1031023022123301
119980876246a2a
12359057740aa05
1314405c6241950
147937451ddcc5
1538bea77700bb
hex1c371c36a925

31023022123301 has 4 divisors (see below), whose sum is σ = 33409408440492. Its totient is φ = 28636635806112.

The previous prime is 31023022123279. The next prime is 31023022123351. The reversal of 31023022123301 is 10332122032013.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10105882050625 + 20917140072676 = 3178975^2 + 4573526^2 .

It is a cyclic number.

It is not a de Polignac number, because 31023022123301 - 210 = 31023022122277 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 (31023022123351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1193193158576 + ... + 1193193158601.

It is an arithmetic number, because the mean of its divisors is an integer number (8352352110123).

Almost surely, 231023022123301 is an apocalyptic number.

It is an amenable number.

31023022123301 is a deficient number, since it is larger than the sum of its proper divisors (2386386317191).

31023022123301 is a wasteful number, since it uses less digits than its factorization.

31023022123301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2386386317190.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31023022123301 its reverse (10332122032013), we get a palindrome (41355144155314).

The spelling of 31023022123301 in words is "thirty-one trillion, twenty-three billion, twenty-two million, one hundred twenty-three thousand, three hundred one".

Divisors: 1 13 2386386317177 31023022123301