1011355044 has 24 divisors (see below), whose sum is σ = 2696947008. Its totient is φ = 288958560.

The previous prime is 1011354997. The next prime is 1011355073. The reversal of 1011355044 is 4405531101.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6019887 + ... + 6020054.

It is an arithmetic number, because the mean of its divisors is an integer number (112372792).

Almost surely, 2^1011355044 is an apocalyptic number.

1011355044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1011355044 is an abundant number, since it is smaller than the sum of its proper divisors (1685591964).

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

1011355044 is a wasteful number, since it uses less digits than its factorization.

1011355044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12039955 (or 12039953 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1011355044 is about 31801.8088164809. The cubic root of 1011355044 is about 1003.7707780278.

Adding to 1011355044 its reverse (4405531101), we get a palindrome (5416886145).

The spelling of 1011355044 in words is "one billion, eleven million, three hundred fifty-five thousand, forty-four".