1102401631 has 4 divisors (see below), whose sum is σ = 1102624600. Its totient is φ = 1102178664.

The previous prime is 1102401617. The next prime is 1102401647. The reversal of 1102401631 is 1361042011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1102401631 is a prime.

It is a super-2 number, since 2×1102401631² = 2430578712062920322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102401599 and 1102401608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102401691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103896 + ... + 114013.

It is an arithmetic number, because the mean of its divisors is an integer number (275656150).

Almost surely, 2^1102401631 is an apocalyptic number.

1102401631 is a deficient number, since it is larger than the sum of its proper divisors (222969).

1102401631 is an equidigital number, since it uses as much as digits as its factorization.

1102401631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222968.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1102401631 is about 33202.4341125767. The cubic root of 1102401631 is about 1033.0308287483.

Adding to 1102401631 its reverse (1361042011), we get a palindrome (2463443642).

The spelling of 1102401631 in words is "one billion, one hundred two million, four hundred one thousand, six hundred thirty-one".