1011401043 has 16 divisors (see below), whose sum is σ = 1429309440. Its totient is φ = 633960576.

The previous prime is 1011401033. The next prime is 1011401059. The reversal of 1011401043 is 3401041101.

It is not a de Polignac number, because 1011401043 - 2⁹ = 1011400531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011401033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43446 + ... + 62532.

It is an arithmetic number, because the mean of its divisors is an integer number (89331840).

Almost surely, 2^1011401043 is an apocalyptic number.

1011401043 is a deficient number, since it is larger than the sum of its proper divisors (417908397).

1011401043 is a wasteful number, since it uses less digits than its factorization.

1011401043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20146.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1011401043 is about 31802.5320218375. The cubic root of 1011401043 is about 1003.7859958132.

Adding to 1011401043 its reverse (3401041101), we get a palindrome (4412442144).

The spelling of 1011401043 in words is "one billion, eleven million, four hundred one thousand, forty-three".