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10121001030031 = 791093209366269
BaseRepresentation
bin1001001101000111101010…
…1010111101000110001111
31022211120001222000110101011
42103101322222331012033
52311310302230430111
633305305041030051
72063134561210513
oct223217252750617
938746058013334
1010121001030031
113252324255891
121175626925327
13585538850848
1426dc053b0143
1512840cc30021
hex9347aabd18f

10121001030031 has 16 divisors (see below), whose sum is σ = 10346394960000. Its totient is φ = 9898096755456.

The previous prime is 10121001029987. The next prime is 10121001030047. The reversal of 10121001030031 is 13003010012101.

It is a cyclic number.

It is not a de Polignac number, because 10121001030031 - 237 = 9983562076559 is a prime.

It is a super-2 number, since 2×101210010300312 (a number of 27 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 = 10121001029993 and 10121001030020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121001030431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27449565 + ... + 27815833.

It is an arithmetic number, because the mean of its divisors is an integer number (646649685000).

Almost surely, 210121001030031 is an apocalyptic number.

10121001030031 is a deficient number, since it is larger than the sum of its proper divisors (225393929969).

10121001030031 is a wasteful number, since it uses less digits than its factorization.

10121001030031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369666.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 10121001030031 its reverse (13003010012101), we get a palindrome (23124011042132).

The spelling of 10121001030031 in words is "ten trillion, one hundred twenty-one billion, one million, thirty thousand, thirty-one".

Divisors: 1 79 109 3209 8611 253511 349781 366269 27632699 28935251 39923321 1175357221 3153942359 92853220459 128113937089 10121001030031