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120312302312031 = 3547247329646767
BaseRepresentation
bin11011010110110001100100…
…000010101001101001011111
3120202222202002012200021011220
4123112301210002221221133
5111232144043342441111
61103514413023144423
734225164003062454
oct3326614402515137
9522882065607156
10120312302312031
1135376185135635
12115b13b6745113
13521952ac1a34b
14219d20a00582b
15dd98ebd9de06
hex6d6c640a9a5f

120312302312031 has 16 divisors (see below), whose sum is σ = 160774660038144. Its totient is φ = 80029191662784.

The previous prime is 120312302312021. The next prime is 120312302312107. The reversal of 120312302312031 is 130213203213021.

It is not a de Polignac number, because 120312302312031 - 230 = 120311228570207 is a prime.

It is a super-2 number, since 2×1203123023120312 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120312302311992 and 120312302312010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120312302312021) 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, 10765191 + ... + 18881576.

It is an arithmetic number, because the mean of its divisors is an integer number (10048416252384).

Almost surely, 2120312302312031 is an apocalyptic number.

120312302312031 is a deficient number, since it is larger than the sum of its proper divisors (40462357726113).

120312302312031 is a wasteful number, since it uses less digits than its factorization.

120312302312031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29649790.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 120312302312031 its reverse (130213203213021), we get a palindrome (250525505525052).

The spelling of 120312302312031 in words is "one hundred twenty trillion, three hundred twelve billion, three hundred two million, three hundred twelve thousand, thirty-one".

Divisors: 1 3 547 1641 2473 7419 1352731 4058193 29646767 88940301 16216781549 48650344647 73316454791 219949364373 40104100770677 120312302312031