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31240214050123 = 1317231394714677
BaseRepresentation
bin1110001101001101011011…
…10111000111010101001011
311002121112110020020021112101
413012212231313013111023
513043314424244100443
6150235320050254231
76403013425026001
oct706465567072513
9132545406207471
1031240214050123
119a5499a445211
123606690587377
131457c2a242990
147a006a680a71
1539296a17d84d
hex1c69addc754b

31240214050123 has 8 divisors (see below), whose sum is σ = 33662833468208. Its totient is φ = 28820384064864.

The previous prime is 31240214050117. The next prime is 31240214050219. The reversal of 31240214050123 is 32105041204213.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31240214050123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31240214050091 and 31240214050100.

It is not an unprimeable number, because it can be changed into a prime (31240214056123) 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, 697334940 + ... + 697379737.

It is an arithmetic number, because the mean of its divisors is an integer number (4207854183526).

Almost surely, 231240214050123 is an apocalyptic number.

31240214050123 is a deficient number, since it is larger than the sum of its proper divisors (2422619418085).

31240214050123 is a wasteful number, since it uses less digits than its factorization.

31240214050123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394716413.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 31240214050123 its reverse (32105041204213), we get a palindrome (63345255254336).

The spelling of 31240214050123 in words is "thirty-one trillion, two hundred forty billion, two hundred fourteen million, fifty thousand, one hundred twenty-three".

Divisors: 1 13 1723 22399 1394714677 18131290801 2403093388471 31240214050123