1401111002 has 4 divisors (see below), whose sum is σ = 2101666506. Its totient is φ = 700555500.

The previous prime is 1401111001. The next prime is 1401111029. The reversal of 1401111002 is 2001111041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1398086881 + 3024121 = 37391^2 + 1739^2 .

It is a super-2 number, since 2×1401111002² = 3926224079850888008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1401111001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350277749 + ... + 350277752.

Almost surely, 2^1401111002 is an apocalyptic number.

1401111002 is a deficient number, since it is larger than the sum of its proper divisors (700555504).

1401111002 is an equidigital number, since it uses as much as digits as its factorization.

1401111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700555503.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1401111002 is about 37431.4173121991. The cubic root of 1401111002 is about 1118.9847842311.

Adding to 1401111002 its reverse (2001111041), we get a palindrome (3402222043).

The spelling of 1401111002 in words is "one billion, four hundred one million, one hundred eleven thousand, two".