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123031214403442 = 21733731072803181
BaseRepresentation
bin11011111110010101101111…
…110101001010111101110010
3121010121200001212110022002221
4123332111233311022331302
5112111220411341402232
61113355432025231254
734625466120405022
oct3376255765127562
9533550055408087
10123031214403442
1136224277128224
121197033493252a
135385a41aba087
142254a577ada82
15e354ce406897
hex6fe56fd4af72

123031214403442 has 16 divisors (see below), whose sum is σ = 195460448547672. Its totient is φ = 57879877167360.

The previous prime is 123031214403373. The next prime is 123031214403451. The reversal of 123031214403442 is 244304412130321.

123031214403442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 123019131777201 + 12082626241 = 11091399^2 + 109921^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 123031214403398 and 123031214403407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536286909 + ... + 536516272.

Almost surely, 2123031214403442 is an apocalyptic number.

123031214403442 is a deficient number, since it is larger than the sum of its proper divisors (72429234144230).

123031214403442 is a wasteful number, since it uses less digits than its factorization.

123031214403442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072806573.

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 123031214403442 its reverse (244304412130321), we get a palindrome (367335626533763).

The spelling of 123031214403442 in words is "one hundred twenty-three trillion, thirty-one billion, two hundred fourteen million, four hundred three thousand, four hundred forty-two".

Divisors: 1 2 17 34 3373 6746 57341 114682 1072803181 2145606362 18237654077 36475308154 3618565129513 7237130259026 61515607201721 123031214403442