10121013 has 12 divisors (see below), whose sum is σ = 16707808. Its totient is φ = 5783400.

The previous prime is 10121009. The next prime is 10121063. The reversal of 10121013 is 31012101.

It is not a de Polignac number, because 10121013 - 2² = 10121009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10120986 and 10121004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121003) 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, 80263 + ... + 80388.

Almost surely, 2^10121013 is an apocalyptic number.

It is an amenable number.

10121013 is a deficient number, since it is larger than the sum of its proper divisors (6586795).

10121013 is a wasteful number, since it uses less digits than its factorization.

10121013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160664 (or 160661 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 10121013 is about 3181.3539570441. The cubic root of 10121013 is about 216.3090355265.

Adding to 10121013 its reverse (31012101), we get a palindrome (41133114).

It can be divided in two parts, 1012101 and 3, that multiplied together give a palindrome (3036303).

The spelling of 10121013 in words is "ten million, one hundred twenty-one thousand, thirteen".