121031010 has 48 divisors (see below), whose sum is σ = 326342016. Its totient is φ = 32274288.

The previous prime is 121030993. The next prime is 121031021. The reversal of 121031010 is 10130121.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121030983 and 121031001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22474 + ... + 27333.

It is an arithmetic number, because the mean of its divisors is an integer number (6798792).

Almost surely, 2^121031010 is an apocalyptic number.

121031010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121031010 is an abundant number, since it is smaller than the sum of its proper divisors (205311006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121031010 is an equidigital number, since it uses as much as digits as its factorization.

121031010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49829 (or 49817 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 121031010 is about 11001.4094551562. The cubic root of 121031010 is about 494.6509936557.

Adding to 121031010 its reverse (10130121), we get a palindrome (131161131).

The spelling of 121031010 in words is "one hundred twenty-one million, thirty-one thousand, ten".