1011202040 has 32 divisors (see below), whose sum is σ = 2394954000. Its totient is φ = 383192064.

The previous prime is 1011202013. The next prime is 1011202091. The reversal of 1011202040 is 402021101.

It is a congruent 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, 664505 + ... + 666024.

Almost surely, 2^1011202040 is an apocalyptic number.

1011202040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011202040 is an abundant number, since it is smaller than the sum of its proper divisors (1383751960).

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

1011202040 is a wasteful number, since it uses less digits than its factorization.

1011202040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330559 (or 1330555 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1011202040 is about 31799.4031390528. The cubic root of 1011202040 is about 1003.7201566064.

Adding to 1011202040 its reverse (402021101), we get a palindrome (1413223141).

The spelling of 1011202040 in words is "one billion, eleven million, two hundred two thousand, forty".