1023101131 has 4 divisors (see below), whose sum is σ = 1101801232. Its totient is φ = 944401032.

The previous prime is 1023101117. The next prime is 1023101143. The reversal of 1023101131 is 1311013201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1311013201 = 7607 ⋅172343.

It is a cyclic number.

It is not a de Polignac number, because 1023101131 - 2²⁹ = 486230219 is a prime.

It is a super-2 number, since 2×1023101131² = 2093471848506958322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 78700087 = 1023101131 / (1 + 0 + 2 + 3 + 1 + 0 + 1 + 1 + 3 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023101161) 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, 39350031 + ... + 39350056.

It is an arithmetic number, because the mean of its divisors is an integer number (275450308).

Almost surely, 2^1023101131 is an apocalyptic number.

1023101131 is a deficient number, since it is larger than the sum of its proper divisors (78700101).

1023101131 is an equidigital number, since it uses as much as digits as its factorization.

1023101131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78700100.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1023101131 is about 31985.9520883778. The cubic root of 1023101131 is about 1007.6418306692.

Adding to 1023101131 its reverse (1311013201), we get a palindrome (2334114332).

The spelling of 1023101131 in words is "one billion, twenty-three million, one hundred one thousand, one hundred thirty-one".