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31140201023 = 461310921727
BaseRepresentation
bin11101000000000110…
…011100001000111111
32222101012210010010122
4131000012130020333
51002233342413043
622150002325155
72151453225041
oct350006341077
988335703118
1031140201023
111222a916a28
1260509597bb
132c2367cc69
141715a4da91
15c23ca1368
hex74019c23f

31140201023 has 8 divisors (see below), whose sum is σ = 31219224960. Its totient is φ = 31061227680.

The previous prime is 31140201017. The next prime is 31140201041. The reversal of 31140201023 is 32010204113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31140201023 - 24 = 31140201007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31140200992 and 31140201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31140201083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1422386 + ... + 1444112.

It is an arithmetic number, because the mean of its divisors is an integer number (3902403120).

Almost surely, 231140201023 is an apocalyptic number.

31140201023 is a deficient number, since it is larger than the sum of its proper divisors (79023937).

31140201023 is a wasteful number, since it uses less digits than its factorization.

31140201023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25297.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31140201023 its reverse (32010204113), we get a palindrome (63150405136).

The spelling of 31140201023 in words is "thirty-one billion, one hundred forty million, two hundred one thousand, twenty-three".

Divisors: 1 461 3109 21727 1433249 10016147 67549243 31140201023