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11124412031 = 31299111681
BaseRepresentation
bin10100101110001000…
…10000111001111111
31001201021112200110102
422113010100321333
5140240322141111
65035510431315
7542446641065
oct122704207177
931637480412
1011124412031
114799493457
1221a566253b
131083937835
14777618035
1545196713b
hex297110e7f

11124412031 has 12 divisors (see below), whose sum is σ = 11507424192. Its totient is φ = 10753776000.

The previous prime is 11124412027. The next prime is 11124412069. The reversal of 11124412031 is 13021442111.

It is not a de Polignac number, because 11124412031 - 22 = 11124412027 is a prime.

It is a super-2 number, since 2×111244120312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11124411994 and 11124412012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11124412021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 946511 + ... + 958191.

It is an arithmetic number, because the mean of its divisors is an integer number (958952016).

Almost surely, 211124412031 is an apocalyptic number.

11124412031 is a deficient number, since it is larger than the sum of its proper divisors (383012161).

11124412031 is an equidigital number, since it uses as much as digits as its factorization.

11124412031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12734 (or 12703 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 11124412031 its reverse (13021442111), we get a palindrome (24145854142).

The spelling of 11124412031 in words is "eleven billion, one hundred twenty-four million, four hundred twelve thousand, thirty-one".

Divisors: 1 31 961 991 11681 30721 362111 952351 11225441 11575871 358852001 11124412031