10121321254 has 32 divisors (see below), whose sum is σ = 17513459712. Its totient is φ = 4343592000.

The previous prime is 10121321237. The next prime is 10121321257. The reversal of 10121321254 is 45212312101.

10121321254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10121321254² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121321257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153022 + ... + 208945.

It is an arithmetic number, because the mean of its divisors is an integer number (547295616).

Almost surely, 2^10121321254 is an apocalyptic number.

10121321254 is a deficient number, since it is larger than the sum of its proper divisors (7392138458).

10121321254 is a wasteful number, since it uses less digits than its factorization.

10121321254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362052.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 10121321254 its reverse (45212312101), we get a palindrome (55333633355).

The spelling of 10121321254 in words is "ten billion, one hundred twenty-one million, three hundred twenty-one thousand, two hundred fifty-four".