121003446431 has 8 divisors (see below), whose sum is σ = 138294524544. Its totient is φ = 103713586200.

The previous prime is 121003446409. The next prime is 121003446457. The reversal of 121003446431 is 134644300121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121003446431 - 2¹⁴ = 121003430047 is a prime.

It is a super-2 number, since 2×121003446431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121003446394 and 121003446403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121003446401) 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, 80585 + ... + 498498.

It is an arithmetic number, because the mean of its divisors is an integer number (17286815568).

Almost surely, 2^121003446431 is an apocalyptic number.

121003446431 is a deficient number, since it is larger than the sum of its proper divisors (17291078113).

121003446431 is an equidigital number, since it uses as much as digits as its factorization.

121003446431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608941.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 121003446431 its reverse (134644300121), we get a palindrome (255647746552).

The spelling of 121003446431 in words is "one hundred twenty-one billion, three million, four hundred forty-six thousand, four hundred thirty-one".