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31023313110323 = 472932827779669
BaseRepresentation
bin1110000110111001011011…
…00011101100010100110011
311001211210121000211220011122
413003130231203230110303
513031241221124012243
6145551525134332455
76351234422330012
oct703345543542463
9131753530756148
1031023313110323
119980a05524876
12359063895a12b
131440641605211
14793771b08a79
1538bec309d668
hex1c372d8ec533

31023313110323 has 16 divisors (see below), whose sum is σ = 31793041365120. Its totient is φ = 30258163886976.

The previous prime is 31023313110277. The next prime is 31023313110329. The reversal of 31023313110323 is 32301131332013.

It is a cyclic number.

It is not a de Polignac number, because 31023313110323 - 28 = 31023313110067 is a prime.

It is a super-2 number, since 2×310233131103232 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31023313110292 and 31023313110301.

It is not an unprimeable number, because it can be changed into a prime (31023313110329) 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, 389362733 + ... + 389442401.

It is an arithmetic number, because the mean of its divisors is an integer number (1987065085320).

Almost surely, 231023313110323 is an apocalyptic number.

31023313110323 is a deficient number, since it is larger than the sum of its proper divisors (769728254797).

31023313110323 is a wasteful number, since it uses less digits than its factorization.

31023313110323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108286.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 31023313110323 its reverse (32301131332013), we get a palindrome (63324444442336).

The spelling of 31023313110323 in words is "thirty-one trillion, twenty-three billion, three hundred thirteen million, one hundred ten thousand, three hundred twenty-three".

Divisors: 1 47 293 13771 28277 79669 1329019 3744443 8285161 23343017 389402567 1097121799 2252800313 105881614711 660070491709 31023313110323