1011350421 has 16 divisors (see below), whose sum is σ = 1513747200. Its totient is φ = 667281024.

The previous prime is 1011350419. The next prime is 1011350429. The reversal of 1011350421 is 1240531101.

It is not a de Polignac number, because 1011350421 - 2¹ = 1011350419 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1011350394 and 1011350403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011350429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190461 + ... + 195698.

It is an arithmetic number, because the mean of its divisors is an integer number (94609200).

Almost surely, 2^1011350421 is an apocalyptic number.

It is an amenable number.

1011350421 is a deficient number, since it is larger than the sum of its proper divisors (502396779).

1011350421 is an equidigital number, since it uses as much as digits as its factorization.

1011350421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386265 (or 386259 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1011350421 is about 31801.7361318529. The cubic root of 1011350421 is about 1003.7692485816.

Adding to 1011350421 its reverse (1240531101), we get a palindrome (2251881522).

The spelling of 1011350421 in words is "one billion, eleven million, three hundred fifty thousand, four hundred twenty-one".