1401111131 has 8 divisors (see below), whose sum is σ = 1620562944. Its totient is φ = 1186482600.

The previous prime is 1401111121. The next prime is 1401111137. The reversal of 1401111131 is 1311111041.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1401111131 - 2³⁰ = 327369307 is a prime.

It is a super-2 number, since 2×1401111131² = 3926224802824198322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1401111137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1205195 + ... + 1206356.

It is an arithmetic number, because the mean of its divisors is an integer number (202570368).

Almost surely, 2^1401111131 is an apocalyptic number.

1401111131 is a deficient number, since it is larger than the sum of its proper divisors (219451813).

1401111131 is an equidigital number, since it uses as much as digits as its factorization.

1401111131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411641.

The product of its (nonzero) digits is 12, while the sum is 14.

The square root of 1401111131 is about 37431.4190353505. The cubic root of 1401111131 is about 1118.9848185727.

Adding to 1401111131 its reverse (1311111041), we get a palindrome (2712222172).

The spelling of 1401111131 in words is "one billion, four hundred one million, one hundred eleven thousand, one hundred thirty-one".