121130031 has 16 divisors (see below), whose sum is σ = 180488448. Its totient is φ = 71620800.

The previous prime is 121130003. The next prime is 121130033. The reversal of 121130031 is 130031121.

It is not a de Polignac number, because 121130031 - 2¹⁰ = 121129007 is a prime.

It is a super-2 number, since 2×121130031² = 29344968820121922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121129989 and 121130016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121130033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43411 + ... + 46116.

It is an arithmetic number, because the mean of its divisors is an integer number (11280528).

Almost surely, 2^121130031 is an apocalyptic number.

121130031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121130031 is a deficient number, since it is larger than the sum of its proper divisors (59358417).

121130031 is a wasteful number, since it uses less digits than its factorization.

121130031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89582.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 121130031 is about 11005.9089129431. The cubic root of 121130031 is about 494.7858557440.

Adding to 121130031 its reverse (130031121), we get a palindrome (251161152).

It can be divided in two parts, 121 and 130031, that multiplied together give a palindrome (15733751).

The spelling of 121130031 in words is "one hundred twenty-one million, one hundred thirty thousand, thirty-one".