121031012 has 12 divisors (see below), whose sum is σ = 215800956. Its totient is φ = 59373600.

The previous prime is 121030993. The next prime is 121031021. The reversal of 121031012 is 210130121.

It can be written as a sum of positive squares in 2 ways, for example, as 98525476 + 22505536 = 9926^2 + 4744^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121030984 and 121031002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285239 + ... + 285662.

It is an arithmetic number, because the mean of its divisors is an integer number (17983413).

Almost surely, 2^121031012 is an apocalyptic number.

It is an amenable number.

121031012 is a deficient number, since it is larger than the sum of its proper divisors (94769944).

121031012 is a wasteful number, since it uses less digits than its factorization.

121031012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570958 (or 570956 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 121031012 is about 11001.4095460536. The cubic root of 121031012 is about 494.6509963803.

Adding to 121031012 its reverse (210130121), we get a palindrome (331161133).

The spelling of 121031012 in words is "one hundred twenty-one million, thirty-one thousand, twelve".