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123422611031 = 1031657723161
BaseRepresentation
bin111001011110010001…
…1111001011001010111
3102210120112102021011222
41302330203321121113
54010232142023111
6132411034520555
711626345612136
oct1627443713127
9383515367158
10123422611031
1148385934485
121bb05b9615b
13b83c2c8bb5
145d8bb1b91d
1533256c77db
hex1cbc8f9657

123422611031 has 8 divisors (see below), whose sum is σ = 124696269984. Its totient is φ = 122150401920.

The previous prime is 123422611001. The next prime is 123422611093. The reversal of 123422611031 is 130116224321.

It is a happy number.

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-123422611031 is a prime.

It is a super-2 number, since 2×1234226110312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123422611001) 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, 190910 + ... + 532251.

It is an arithmetic number, because the mean of its divisors is an integer number (15587033748).

Almost surely, 2123422611031 is an apocalyptic number.

123422611031 is a deficient number, since it is larger than the sum of its proper divisors (1273658953).

123422611031 is a wasteful number, since it uses less digits than its factorization.

123422611031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724921.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 123422611031 its reverse (130116224321), we get a palindrome (253538835352).

The spelling of 123422611031 in words is "one hundred twenty-three billion, four hundred twenty-two million, six hundred eleven thousand, thirty-one".

Divisors: 1 103 1657 170671 723161 74485583 1198277777 123422611031