1012121342 has 8 divisors (see below), whose sum is σ = 1518492096. Its totient is φ = 505957312.

The previous prime is 1012121323. The next prime is 1012121399. The reversal of 1012121342 is 2431212101.

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

It is a super-2 number, since 2×1012121342² = 2048779221863761928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1012121342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38798 + ... + 59409.

It is an arithmetic number, because the mean of its divisors is an integer number (189811512).

Almost surely, 2^1012121342 is an apocalyptic number.

1012121342 is a deficient number, since it is larger than the sum of its proper divisors (506370754).

1012121342 is an equidigital number, since it uses as much as digits as its factorization.

1012121342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103362.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1012121342 is about 31813.8545605527. The cubic root of 1012121342 is about 1004.0242311734.

Adding to 1012121342 its reverse (2431212101), we get a palindrome (3443333443).

The spelling of 1012121342 in words is "one billion, twelve million, one hundred twenty-one thousand, three hundred forty-two".