1011424781 has 8 divisors (see below), whose sum is σ = 1016492544. Its totient is φ = 1006367760.

The previous prime is 1011424763. The next prime is 1011424783. The reversal of 1011424781 is 1874241101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1011424781 - 2¹⁸ = 1011162637 is a prime.

It is a super-2 number, since 2×1011424781² = 2045960175241795922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011424783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236936 + ... + 241166.

It is an arithmetic number, because the mean of its divisors is an integer number (127061568).

Almost surely, 2^1011424781 is an apocalyptic number.

It is an amenable number.

1011424781 is a deficient number, since it is larger than the sum of its proper divisors (5067763).

1011424781 is an equidigital number, since it uses as much as digits as its factorization.

1011424781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5371.

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 1011424781 is about 31802.9052289252. The cubic root of 1011424781 is about 1003.7938488423.

Adding to 1011424781 its reverse (1874241101), we get a palindrome (2885665882).

The spelling of 1011424781 in words is "one billion, eleven million, four hundred twenty-four thousand, seven hundred eighty-one".