1131141402 has 64 divisors (see below), whose sum is σ = 2707584000. Its totient is φ = 348881904.

The previous prime is 1131141371. The next prime is 1131141419. The reversal of 1131141402 is 2041411311.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31299 + ... + 56937.

It is an arithmetic number, because the mean of its divisors is an integer number (42306000).

Almost surely, 2^1131141402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131141402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1353792000).

1131141402 is an abundant number, since it is smaller than the sum of its proper divisors (1576442598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131141402 is a wasteful number, since it uses less digits than its factorization.

1131141402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25712 (or 25706 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1131141402 is about 33632.4456737835. The cubic root of 1131141402 is about 1041.9310160478.

Adding to 1131141402 its reverse (2041411311), we get a palindrome (3172552713).

The spelling of 1131141402 in words is "one billion, one hundred thirty-one million, one hundred forty-one thousand, four hundred two".