1131502155031 has 4 divisors (see below), whose sum is σ = 1145824967200. Its totient is φ = 1117179342864.

The previous prime is 1131502154983. The next prime is 1131502155059. The reversal of 1131502155031 is 1305512051311.

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

It is a cyclic number.

It is not a de Polignac number, because 1131502155031 - 2¹³ = 1131502146839 is a prime.

It is a super-2 number, since 2×1131502155031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131502155071) 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, 7161405966 + ... + 7161406123.

It is an arithmetic number, because the mean of its divisors is an integer number (286456241800).

Almost surely, 2^{1131502155031} is an apocalyptic number.

1131502155031 is a deficient number, since it is larger than the sum of its proper divisors (14322812169).

1131502155031 is an equidigital number, since it uses as much as digits as its factorization.

1131502155031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14322812168.

The product of its (nonzero) digits is 2250, while the sum is 28.

The spelling of 1131502155031 in words is "one trillion, one hundred thirty-one billion, five hundred two million, one hundred fifty-five thousand, thirty-one".