10121124431 has 8 divisors (see below), whose sum is σ = 11276146944. Its totient is φ = 9005255320.

The previous prime is 10121124427. The next prime is 10121124443. The reversal of 10121124431 is 13442112101.

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 10121124431 - 2² = 10121124427 is a prime.

It is a super-2 number, since 2×10121124431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121124451) 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, 9787805 + ... + 9788838.

It is an arithmetic number, because the mean of its divisors is an integer number (1409518368).

Almost surely, 2^10121124431 is an apocalyptic number.

10121124431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10121124431 is a deficient number, since it is larger than the sum of its proper divisors (1155022513).

10121124431 is a wasteful number, since it uses less digits than its factorization.

10121124431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19576701.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 10121124431 its reverse (13442112101), we get a palindrome (23563236532).

The spelling of 10121124431 in words is "ten billion, one hundred twenty-one million, one hundred twenty-four thousand, four hundred thirty-one".