31001220201002 has 32 divisors (see below), whose sum is σ = 50202576403200. Its totient is φ = 14313781012608.

The previous prime is 31001220201001. The next prime is 31001220201037. The reversal of 31001220201002 is 20010202210013.

It is a happy number.

It is a super-2 number, since 2×31001220201002² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31001220201001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10476638 + ... + 13105814.

It is an arithmetic number, because the mean of its divisors is an integer number (1568830512600).

Almost surely, 2^{31001220201002} is an apocalyptic number.

31001220201002 is a deficient number, since it is larger than the sum of its proper divisors (19201356202198).

31001220201002 is a wasteful number, since it uses less digits than its factorization.

31001220201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638070.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 31001220201002 its reverse (20010202210013), we get a palindrome (51011422411015).

The spelling of 31001220201002 in words is "thirty-one trillion, one billion, two hundred twenty million, two hundred one thousand, two".