1201711426 has 8 divisors (see below), whose sum is σ = 1811717820. Its totient is φ = 597805488.

The previous prime is 1201711391. The next prime is 1201711439. The reversal of 1201711426 is 6241171021.

It can be written as a sum of positive squares in 2 ways, for example, as 1062825201 + 138886225 = 32601^2 + 11785^2 .

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

It is a super-2 number, since 2×1201711426² = 2888220702757906952, 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 1201711426.

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, 1524621 + ... + 1525408.

Almost surely, 2^1201711426 is an apocalyptic number.

1201711426 is a deficient number, since it is larger than the sum of its proper divisors (610006394).

1201711426 is a wasteful number, since it uses less digits than its factorization.

1201711426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3050228.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1201711426 is about 34665.7096566622. The cubic root of 1201711426 is about 1063.1635129616.

Adding to 1201711426 its reverse (6241171021), we get a palindrome (7442882447).

The spelling of 1201711426 in words is "one billion, two hundred one million, seven hundred eleven thousand, four hundred twenty-six".