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31003113301 = 881161321817
BaseRepresentation
bin11100110111111011…
…011111011101010101
32222000122211100010121
4130313323133131111
51001443244111201
622124224151541
72145200054266
oct346773373525
988018740117
1031003113301
111216a4a3996
126012a685b1
132c01152374
14170176696d
15c16c229a1
hex737edf755

31003113301 has 8 divisors (see below), whose sum is σ = 31058970264. Its totient is φ = 30947304960.

The previous prime is 31003113293. The next prime is 31003113307. The reversal of 31003113301 is 10331130013.

It can be written as a sum of positive squares in 4 ways, for example, as 4041144900 + 26961968401 = 63570^2 + 164201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31003113301 - 23 = 31003113293 is a prime.

It is a super-2 number, since 2×310031133012 (a number of 22 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 (31003113307) 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, 1410145 + ... + 1431961.

It is an arithmetic number, because the mean of its divisors is an integer number (3882371283).

Almost surely, 231003113301 is an apocalyptic number.

It is an amenable number.

31003113301 is a deficient number, since it is larger than the sum of its proper divisors (55856963).

31003113301 is a wasteful number, since it uses less digits than its factorization.

31003113301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24311.

The product of its (nonzero) digits is 81, while the sum is 16.

Adding to 31003113301 its reverse (10331130013), we get a palindrome (41334243314).

The spelling of 31003113301 in words is "thirty-one billion, three million, one hundred thirteen thousand, three hundred one".

Divisors: 1 881 1613 21817 1421053 19220777 35190821 31003113301