1005723137402 has 8 divisors (see below), whose sum is σ = 1511094832212. Its totient is φ = 502024860000.

The previous prime is 1005723137371. The next prime is 1005723137411. The reversal of 1005723137402 is 2047313275001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 975592773841 + 30130363561 = 987721^2 + 173581^2 .

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

It is a super-2 number, since 2×1005723137402² (a number of 25 digits) contains 22 as substring.

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, 418352849 + ... + 418355252.

Almost surely, 2^{1005723137402} is an apocalyptic number.

1005723137402 is a deficient number, since it is larger than the sum of its proper divisors (505371694810).

1005723137402 is an equidigital number, since it uses as much as digits as its factorization.

1005723137402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836708704.

The product of its (nonzero) digits is 35280, while the sum is 35.

The spelling of 1005723137402 in words is "one trillion, five billion, seven hundred twenty-three million, one hundred thirty-seven thousand, four hundred two".