10121321131 has 8 divisors (see below), whose sum is σ = 10499428800. Its totient is φ = 9749463360.

The previous prime is 10121321129. The next prime is 10121321137. The reversal of 10121321131 is 13112312101.

It is a happy number.

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 10121321131 - 2¹ = 10121321129 is a prime.

It is a super-2 number, since 2×10121321131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121321137) 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, 1559176 + ... + 1565653.

It is an arithmetic number, because the mean of its divisors is an integer number (1312428600).

Almost surely, 2^10121321131 is an apocalyptic number.

10121321131 is a deficient number, since it is larger than the sum of its proper divisors (378107669).

10121321131 is an equidigital number, since it uses as much as digits as its factorization.

10121321131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3124949.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 10121321131 its reverse (13112312101), we get a palindrome (23233633232).

The spelling of 10121321131 in words is "ten billion, one hundred twenty-one million, three hundred twenty-one thousand, one hundred thirty-one".