121003132131123 has 32 divisors (see below), whose sum is σ = 177217651008000. Its totient is φ = 72829952256000.

The previous prime is 121003132131053. The next prime is 121003132131151. The reversal of 121003132131123 is 321131231300121.

It is not a de Polignac number, because 121003132131123 - 2¹³ = 121003132122931 is a prime.

It is a super-2 number, since 2×121003132131123² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121003132131093 and 121003132131102.

It is not an unprimeable number, because it can be changed into a prime (121003132131173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25173298 + ... + 29592248.

It is an arithmetic number, because the mean of its divisors is an integer number (5538051594000).

Almost surely, 2^{121003132131123} is an apocalyptic number.

121003132131123 is a deficient number, since it is larger than the sum of its proper divisors (56214518876877).

121003132131123 is a wasteful number, since it uses less digits than its factorization.

121003132131123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4424683.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 121003132131123 its reverse (321131231300121), we get a palindrome (442134363431244).

The spelling of 121003132131123 in words is "one hundred twenty-one trillion, three billion, one hundred thirty-two million, one hundred thirty-one thousand, one hundred twenty-three".