1023201137 has 4 divisors (see below), whose sum is σ = 1169372736. Its totient is φ = 877029540.

The previous prime is 1023201133. The next prime is 1023201143. The reversal of 1023201137 is 7311023201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7311023201 = 13217 ⋅553153.

It is a cyclic number.

It is not a de Polignac number, because 1023201137 - 2² = 1023201133 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1023201131) 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, 73085789 + ... + 73085802.

It is an arithmetic number, because the mean of its divisors is an integer number (292343184).

Almost surely, 2^1023201137 is an apocalyptic number.

It is an amenable number.

1023201137 is a deficient number, since it is larger than the sum of its proper divisors (146171599).

1023201137 is an equidigital number, since it uses as much as digits as its factorization.

1023201137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146171598.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 1023201137 is about 31987.5153302034. The cubic root of 1023201137 is about 1007.6746612281.

Adding to 1023201137 its reverse (7311023201), we get a palindrome (8334224338).

The spelling of 1023201137 in words is "one billion, twenty-three million, two hundred one thousand, one hundred thirty-seven".