1011421730 has 32 divisors (see below), whose sum is σ = 1993673088. Its totient is φ = 366380800.

The previous prime is 1011421729. The next prime is 1011421739. The reversal of 1011421730 is 371241101.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1011421739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11450 + ... + 46410.

It is an arithmetic number, because the mean of its divisors is an integer number (62302284).

Almost surely, 2^1011421730 is an apocalyptic number.

1011421730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011421730 is a deficient number, since it is larger than the sum of its proper divisors (982251358).

1011421730 is a wasteful number, since it uses less digits than its factorization.

1011421730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35242.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1011421730 is about 31802.8572615732. The cubic root of 1011421730 is about 1003.7928395143.

Adding to 1011421730 its reverse (371241101), we get a palindrome (1382662831).

The spelling of 1011421730 in words is "one billion, eleven million, four hundred twenty-one thousand, seven hundred thirty".