1011009342 has 32 divisors (see below), whose sum is σ = 2432505600. Its totient is φ = 273656448.

The previous prime is 1011009341. The next prime is 1011009343. The reversal of 1011009342 is 2439001101.

It is an interprime number because it is at equal distance from previous prime (1011009341) and next prime (1011009343).

It is a super-2 number, since 2×1011009342² = 2044279779222545928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011009341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 632667 + ... + 634262.

It is an arithmetic number, because the mean of its divisors is an integer number (76015800).

Almost surely, 2^1011009342 is an apocalyptic number.

1011009342 is an abundant number, since it is smaller than the sum of its proper divisors (1421496258).

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

1011009342 is a wasteful number, since it uses less digits than its factorization.

1011009342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266960.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1011009342 is about 31796.3730950560. The cubic root of 1011009342 is about 1003.6563951468.

The spelling of 1011009342 in words is "one billion, eleven million, nine thousand, three hundred forty-two".