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123413151431 = 17315335312517
BaseRepresentation
bin111001011101111111…
…1110011111011000111
3102210112212121200001102
41302323333303323013
54010222231321211
6132410100050315
711626202323133
oct1627377637307
9383485550042
10123413151431
1148380563329
121bb0299399b
13b83a3662bb
145d8a7783c3
153324959a3b
hex1cbbff3ec7

123413151431 has 32 divisors (see below), whose sum is σ = 137833394688. Its totient is φ = 109964574720.

The previous prime is 123413151409. The next prime is 123413151457. The reversal of 123413151431 is 134151314321.

It is a cyclic number.

It is not a de Polignac number, because 123413151431 - 218 = 123412889287 is a prime.

It is a super-2 number, since 2×1234131514312 (a number of 23 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 = 123413151394 and 123413151403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123413151131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9853385 + ... + 9865901.

It is an arithmetic number, because the mean of its divisors is an integer number (4307293584).

Almost surely, 2123413151431 is an apocalyptic number.

123413151431 is a deficient number, since it is larger than the sum of its proper divisors (14420243257).

123413151431 is a wasteful number, since it uses less digits than its factorization.

123413151431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12971.

The product of its digits is 4320, while the sum is 29.

Adding to 123413151431 its reverse (134151314321), we get a palindrome (257564465752).

The spelling of 123413151431 in words is "one hundred twenty-three billion, four hundred thirteen million, one hundred fifty-one thousand, four hundred thirty-one".

Divisors: 1 17 31 53 353 527 901 1643 6001 10943 12517 18709 27931 186031 212789 318053 388027 579979 663401 4418501 6596459 9859643 11277817 20565431 75114517 136973531 234180553 349612327 2328550027 3981069401 7259597143 123413151431