10121002431 has 16 divisors (see below), whose sum is σ = 13521725184. Its totient is φ = 6733825344.

The previous prime is 10121002429. The next prime is 10121002433. The reversal of 10121002431 is 13420012101.

It is an interprime number because it is at equal distance from previous prime (10121002429) and next prime (10121002433).

It is not a de Polignac number, because 10121002431 - 2¹ = 10121002429 is a prime.

It is a super-2 number, since 2×10121002431² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10121002431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121002433) 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, 6219840 + ... + 6221466.

It is an arithmetic number, because the mean of its divisors is an integer number (845107824).

Almost surely, 2^10121002431 is an apocalyptic number.

10121002431 is a deficient number, since it is larger than the sum of its proper divisors (3400722753).

10121002431 is a wasteful number, since it uses less digits than its factorization.

10121002431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4510.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 10121002431 its reverse (13420012101), we get a palindrome (23541014532).

The spelling of 10121002431 in words is "ten billion, one hundred twenty-one million, two thousand, four hundred thirty-one".